Oh, sorry, this comment got buried! Yeah, the playtesting is going very well, I've noticed little hiccups with combat difficulty being too low (due to Mooks being that easy to dispatch), but other than that, it seems to be working well.
I'm going to be releasing a new version later this month, effectively the final playtest version before the game launches later this year / early next year. It's mostly just up to art assets at this point.