For a synth sized action, pretty impressed with the BK-9 action. A vast improvement over the BK-5 (keys about 1/2" longer), crisp, comfortable.

No aftertouch. TBH, not using it much any more. Since Roland axed the ability to control LFO speed with aftertouch, not really into it. Most of the time, a delayed LFO amount will do almost the same thing.