If you can actually find people to play with. 5v5 open queue is a good substitute but I like the balancing so much more in the custom mode. So many tanks are to op like dva, some are throw picks like doom but the balancing being made by actual gamers is really fun in the custom game.
This is what people are talking about when they say they want tanks to be weaker. Not WEAK but toned down at least with health and armor. Ball is especially noticeable. He was buffed way to much for role queue