It is like WoW arena. Idk how you can have an opinion on it if you've never even played it. It also takes way more skill than WoW in its current state as everything is a skill shot.
Game is severely limited in skill, to the point were the game is decided in the picking phase and there is no need to play the actual match.
In addition the game is dying so I wouldn't recommend it to my fellow AJ players.