I found more balance issues on skill level of players than characters, sure there are some things like Isic’s Ulti that might need to be balanced but overall it seemed more teams with better communication and more experienced FPS players won on skill.
On collision I heard people complain about it but I didn’t have any issues, I guess I’m used to in an FPS you can’t run through things, there have not yet been FPS MOBAs so just because other ones don’t have this does not mean this should not. In fact I saw many using body blocks with tanks to help teammates escape better.
I somewhat agree on the menu, the loot system is still low but I didn’t really have unresponsive issues it was fast and smooth.
On the quitters I’ve heard (not confirmed) that they didn’t have penalties for people quitting out in the beta because they just wanted to encourage people to play. I hope they have something built in for this in the final version.
… at all … ever.