I think the main problem everybody is complaining about is performance!
Im using a core i5 6600k @ 4Gz, 16Gb ram, and a Rx480 8Gb. My system keeps the game running close to 60fps most of the time(with 80fps peaks) but I notice some randoms slow downs! The game is using majority of graphical setting in medium with textures at Hight here.
Some moments when the match was at the beginning when characters cant move, there was slows to 13fps but since the game really stated the fps increased. Im using steam fps counter.
Beyond these problems I think the character movements need improvements because they're making some movements too fast. Chars could run as they are, but change in directions should not be so fast.
I hope devs continue improving characters animation even after the release but they seem a bit strange and no so natural.