I got in, performance is spotty as hell though. Seems to be a common issue, blue answered they're on it, but basically I get stutters/freezes extremely frequently, more or less everytime someone uses an ability that hasn't been used yet on my screen(loading assets issue). Game's installed on my SSD, even D3 doesn't stutter so yeah weird stuff. Also they still only have US west servers it seems cause I'm also getting pretty bad lag, I hoped they would have US east servers opened too. Maybe there are some and they're randomly selected and I've been unlucky, but US west ping is pretty shit for this type of game. Still nice I'll probably grind some levels and try to unlock some heroes that might not be too lag sensitive.
Edit: And apparently lost my first 2k gold to a bug, nice. Unlocked hero, hero didn't unlock, relogged, now isn't unlocked and no gold refunded.