Keystep : Excellent product, highly recommended!

PROS:

-The keys have aftertouch and feel very nice for such a small and compact design.

-Lots of sync options. My personal favourite being that it translates MIDI to Korg pulse which allows me to easily sync my DAW to Korg stuff like the Volcas. And it has minijack sync I/O.

-Proper MIDI ins/outs (not just USB) and CV outputs.

-Excellent polyphonic 64 step sequencer (very user friendly when connected to a computer). I don't really use the step sequencer much but it works great! Very nice arpeggiator too.

-Very intuitive in use. Very easy to learn all basic functions.

-Lots of "under the hood" settings and options (like velocity curves CV/gate settings, etc.). A lot more than I will probably ever need. Far too much to get into here but the manual can be downloaded from the Arturia website.

-Very nice design, looks classier than most midi keyboards.

-Excellent build quality, feels sturdier than most midi keyboards I've used.

-9v power input so it can be used as standalone.

CONS:

-Although it has a 9v input it can't be used with standard Boss type adapter. It requires a 500mA adapter to work. This is EXTREMLY inconvenient but it's also the only negative thing I have to say about the Keystep.

Great product, HIGHLY RECOMMENDED!