K-2 : solid, recommended

MS20 in module form. Solves space issues in the studio and provides both filter types. Type 1 moves into distortion easily, sounds raw, at the cost of some noise in the audio path. Type 2 is more tame, but still squeals, and has no noise. Having both is great, use as needed.

You do lose the modulation wheel from the original design. This may or may not bother you. Build quality is pretty good, knobs feel great in use. I do have one jack that works but clicks loudly when a patch cable is inserted. Also noticed that the octave switch on VCO2 will throw the vco slightly out of tune (difference between perfect and slightly beating), I don't think its calibrated perfectly. But it's an analog synth, I'm willing to forgive this stuff.

If you are looking for MS20 sound, I'd pick this up. Recommended, does the job, nasty.