Pretty fun! There's something about a limited sequencer that is particularly fun to noodle around on. With no limitations it can be hard to decide where to start, but given a forced 8-step looping sequence it's a lot easier to just relax and do whatever.
I didn't really play around with the effects until the end but they're also super fun.
I didn't realize that the trash can guy did not, in fact, have the final sound I was missing and was instead just a gate to the end of the game, so I ended up having to clear everything before getting the last sound, which was kind of too bad (I was hoping to add each of the sounds one at a time until I found all of them). I guess the game could maybe benefit from a built-in way to go back to a loop you had after clearing it, but that might be taking it too seriously :P