The obvious subjects for me,
just finishing up my small enclosure, 3 encoders, 7 pots, a few switches,and it really opens it up, and makes my half assed attempt at an enclosure "proper"
as above with borututuforte, just a really nice implementation of a 4way looper, does the things you need in a really streamlined way
The mystery box, someone on the forum described it as an instrument that has to be learned, I have a pair that can be linked in series or in parallel [ a sorta mock cocoquantus] and can spend hours lost in tweaking.
most of my patches end up going into a
TSG/fx/tapedelay and an fx/lmnts/reverb for colour and space, there a tons more, trying to stay concise but the amazing thing, as someone who hasn't begun coding, is there is always more to find.....I'd love a few filter recommendations, tried a few of tiar and SSS implementations, there really is lots to explore