I have a Monsoon that was built by CalSynth (on Reverb, aka ZZ Ardoz on that other forum website) and I love it. I bought it to replace my Michigan Synth Works uBurst because I got tired of using the Blend button, and it does a good job, but then I never got rid of the uBurst either because it turned out having two Clouds is a very nice thing. Sometimes I wish it had attenuators on the inputs, of course, but then itād have to be way bigger.
IMO it does a good job of packing in so much more control than the original in less space. I find the sliders to be nice and playable, and on my build the slider LEDs are bipolar red & green, which is helpful, and the blend mode mini pots are secured to the panel, so theyāre as just as solid as any āfull-sizeā pots.
I canāt say I often taken advantage of the simultaneous CV control over multiple blend modes, but during a performance, being able to adjust one blend mode manually without interrupting CV control over another is really useful and I wouldnāt want to go back.