i had two crashes where the application went black but music continued to play -- and also some stuttering, i think twice, when first encountering enemies on a new load of the game. i read somewhere that the stuttering is a common Godot thing, though. one crash was when spamming the green mist skill while walking around and the other was while fighting the AoE boss. i upgraded to a pretty decent mid-range PC since i last gave feedback so i think it was actually the game this time
i held off on writing feedback since i get the feeling it'd be easy to dismiss the small issues i'd have complained about because i'm not the WoW-playing target audience and i'd waste our time writing it all out (why can't i stop charging a spell? i always think that escape opens the backpack, etc.)
though, having thought about it, i'd like to say that my biggest peeve is how much micromanaging goes into moving the team. if i were a WoW player on comms i would say "get out of the AoE!" and they would do it, but in HtD we all have to stop what we're doing and walk hand-in-hand to a different location, then i have to press another button to resume fighting (as i recall the game doesn't even visually tell you when you're switching modes, so i've left my team sitting idle while continuing to play before after forgetting to set them to attack)
i hope i don't offend you when i say that i think the game needs more time spent on graphics (UI, menus, text, overworld, enemy variance, hero visual identity -- i don't like how different heroes share models) than there is until nextfest/release and i dread seeing HtD get a poor reception just because it was rushed due to something arbitrary like the meta of joining a nextfest then releasing a month after