My favorite game now. I totally recommend it.
Some points that might interest you :

1) Highly competitive.
2) Fast-paced.
3) Games are short and don't have any boring stuff like farming.
4) Couldn't find anything in this genre to even compare to the quality of this game.
5) The gameplay is really polished , they are still working on the parts like menus and matchmaking since it's early access.
6) You don't have any disavantages compared to older players like runes or masteries or progression points.It's all skill.
7) FUN
8) Did I mention FUN? It's FUN !

See you in the arena !