By aspect — in detail
The headline split, and it tracks which axis you judge on. The 32 synth-action mini keys feel solid and are widely called nicer than most minis, and the extra half-octave over a 25-key controller is welcome. But the velocity response is the single most-cited complaint: uneven, prone to jumping from quiet to very loud, playing softly overall, and — the sticking point — not adjustable on the unit, so some players fall back on the fixed-velocity button or return it. Velocity-sensitive; no aftertouch.
Measured
Spec: 32 velocity-sensitive, synth-action, micro-sized custom NI keys; no aftertouch. There is a fixed-velocity option (Shift + Octave) but no user-adjustable velocity curve on the hardware — NI support confirms the response can't be re-shaped on the unit.
⚠ vs. listeners — NI bills it as a 'best-in-class' micro keybed; the physical feel supports that, but the velocity mapping is what a large camp objects to — same keys, different axis.
Where it splits
The mini keys feel solid and nicer than most, and 32 of them is a real plus60%
“Even though the keys are mini sized, they feel a lot nicer than a lot of similar sized controllers I've tried (such as the Akai LPK25).”
u/Poodly_Doodly · r/NativeInstruments
The velocity curve is poor and unadjustable — uneven and hard to control40%
“velocity curve is bad. There is a small half way controllable area in the middle velocity region.”
azslow3 · azslow.com
A relative strength. The eight touch-sensitive endless knobs (touch one to see what it controls) and the four-way browse/select encoder carry over from the pricier A- and S-Series and draw consistent praise; the single-line OLED is responsive but small, so visual feedback is limited. The main gripe is the two touch strips that replace pitch and mod wheels — easy to nudge by accident and, to some, less sensitive than real wheels — and some find the buttons clacky.
“the eight capacitive knobs, 4D encoder and numerous buttons are uncompromised in their size and feel”
MusicRadar
“The 8 endless encoders are touch sensitive, so you can touch one to see what it controls without actually turning it.”
u/Poodly_Doodly · r/NativeInstruments
“They are too easy change unintentionally”
azslow3 · azslow.com
Measured
Spec: eight touch-sensitive endless (360°) control knobs, one four-directional push encoder for browsing/navigation, two capacitive touch strips (pitch/mod), a single-line OLED display, plus transport and mode buttons. No faders and no pads.
Integration
Contested · 8 srcThe whole reason to buy it — and its biggest fault line. Inside the NI world it's a standout: the Komplete Kontrol software consolidates every NKS-tagged instrument into one browser with tag search and instant audio previews you can drive from the hardware, with pre-mapped knobs and transport/mixer control in supported DAWs. But it's a walled garden — locked to NI's proprietary driver and a short list of advanced-integration DAWs (Logic, GarageBand, Live, plus later Cubase/Nuendo/Studio One/Pro Tools); FL Studio gets almost none of it. Outside that lane it's a plain MIDI controller, and a real cluster of owners report the DAW control simply failing to work.
Measured
Spec: advanced (transport/mixer/browse) integration listed for Logic Pro X, GarageBand, Ableton Live, Cubase, Nuendo, Studio One and Pro Tools; the Komplete Kontrol software is required to control the NKS library. In other hosts (e.g. FL Studio) it acts as a generic MIDI controller and can control Komplete Kontrol plug-in instances but not the DAW.
Where it splits
Inside NKS + a supported DAW, the browsing and control are the standout feature70%
“All your instruments and effects that support NI's NKS patch format get consolidated into the KK browser, which provides tag-based searching and the killer feature of audio previews for all patches.”
Sound on Sound
Locked to NI's software and a short DAW list — hobbled or unreliable outside it30%
“M32 is not a MIDI nor a USB-MIDI device. It can only be used with proprietary driver”
azslow3 · azslow.com
Software
Strong consensus · 5 srcOften the reason to buy it. The bundle — Komplete Start (and, in current NI/retailer deals, a Komplete Select voucher), Maschine Essentials, Ableton Live Lite, plus Monark, Reaktor Prism and the Scarbee Mark 1 electric piano, a store voucher and Sounds time — is widely called worth more than the keyboard itself. It's the entry tier rather than the fuller A-/S-Series bundles, and you do have to run the Komplete Kontrol software to get the headline browsing.
“Add the Monark and Reaktor Prism synths, the Scarbee Mark 1 piano and free time on Sounds, plus a £22 voucher to the NI shop, and you'll agree that it is quite a bundle for £99”
MusicTech
“The software that comes with this keyboard is incredible, and alone probably costs more than the keyboard itself.”
Verified owner · Sweetwater
Measured
Bundle (after registration): Komplete Kontrol software, Komplete Start, Maschine Essentials, Ableton Live Lite, Monark, Reaktor Prism, Scarbee Mark 1, a Native Instruments store e-voucher and a Sounds.com subscription; current retail bundles add a Komplete Select voucher.
Connectivity
Moderate · 4 srcThe functional limit, by consensus. The rear panel is USB-B (bus-powered) plus a single TRS pedal input assignable to sustain — no 5-pin MIDI in or out and no CV/gate, so it can't drive hardware on its own. It also draws enough power that running it off an iPad or iPhone needs an external supply.
“It's disappointing that there's no regular MIDI output.”
Sound on Sound
“It only has a USB input with a foot controller (no MIDI in/out/thru, no audio output/inputs, no headphone jack).”
Verified owner · Sweetwater
Measured
Rear I/O: USB 2.0 (bus-powered, cable included) and a TRS pedal input assignable to sustain. No 5-pin MIDI in/out and no CV/gate.
Portability
Moderate · 5 srcLight and slim, but longer than you'd expect. At about 475 × 167 × 50 mm and 1.45 kg it's genuinely feather-light and disappears on a desk, and the extra keys are the trade-up over 25-key minis — but at ~18.7 inches it's a fair bit longer than the average mini, and many reviewers and owners note it won't fit an average backpack.
“It's only a 32-note keyboard and combined with smaller keys, it covers a very small footprint and is as light as a feather.”
MusicTech
“a fair bit longer than the average mini keyboard, It does require you to have a fairly large bag or backpack”
MusicRadar
Measured
Spec: 475 × 167 × 50 mm (18.7 × 6.57 × 1.96 in), 1.45 kg / 2.27 lbs, USB bus-powered.
Solid for light plastic. Reviewers and owners repeatedly note it feels sturdy and well made despite the low weight, with knobs and buttons carried over from the bigger keyboards. Knocks are minor and scattered: sharp-ish edges, clacky buttons, and a handful of reliability reports (a unit bricking during a firmware update, or powering on and off after a couple of years) that read as unit-to-unit variation.
“plastic, yes, but also very solid.”
MusicTech
“the whole unit is very light while still giving the impression of durability.”
u/Poodly_Doodly · r/NativeInstruments
Rarely disputed for the target buyer: a lot of controller plus a bundle worth more than the hardware for around $119–139, and a genuine low-cost door into NKS. Two caveats keep it from a clean sweep — reviewers note the A49 is only ~$50 more for full-size keys and a bigger bundle, and the value case weakens sharply if you don't use Komplete Kontrol, since much of what you're paying for is tied to NI's software.
“the M32 is ridiculous in terms of bang for buck.”
MusicTech
“For provided features, control types, the number of controls and included software, the device is not overpriced.”
azslow3 · azslow.com
