So first off there's the things I believe everyone can agree with me on. These are technical things and should not happen, regardless of any other element. In no particular order
-my friend couldn't join my party in any way whatsoever.
-HUD wouldn't appear any way after 2 games today. No health or stamina bars and no widget either.
-camera clipped through the ground in the sanctuary.
-2 minutes matchmaking for dominion when the thingy in the lower left corner claimed "high population"
-chose find me another opponent. got matched up for a second and third time against the same guy (duel).
-zone attacks straight up don't work 60% of the time. And orochis are a thing that exists. RIP my controller.

Things I personally dislike. Maybe I need to get gut but even so these are my two cents
-cent is annoying. he can tire you out with less than half of his stamina bar with no obvious counterplay whatsoever.
-shugoki is absurd. I can't caber toss him as a highlander even if he wasnt doing anything in particular. That's straight up disadvantage. His attacks are also fast, hit hard and he's got a lot of health. I can't find any way to counter him other than picking a specific hero to stand a chance (i'm thinking nobushi because range)
-conqueror also seems to have very low stamina drain on the shield bash+light combo but that isn't as bad and it's easily dodgeable so meh
-revenge mode is a joke. The enemies can just run away until it expires then resume beating you. I think it would be neat if at the end of it you'd get a healproportionate to the shield left or something (yeah i can see this being broken in duels and brawls but then again, those modes shouldn't accept weapon stats by default).

I'm not that good so I might be missing something that should cancel the second category of complaints and I'm well aware that those are mostly subjective. But the first category are things that just shouldn't happen.