This will be fun, if you have tiny fingers. Otherwise, the micro-modules will get on your nerves at some point, particularly the Marbles clone (Marbles, unlike a lot of similar random-based sequencers, is really playable, and not at its best as a "set-and-forget" sequencer). Otherwise, the lack of VCAs is your only real issue.... you're going to want some. Maybe replace the input module with something like Ears, and use the free 4hp to add a VCA module (there are several dual VCA modules in 4hp available).