The game also features a shit ton of features and options more, like the more than solid single player content and training/learning stuff plus the tournaments.
In addition to this, the execution and attention of detail in most things are best in class. I mean, the quality of the netcode, how fast you play again with people online, many options to customize your experience, how the 3D lobby is if you don't want to use the traiditional menus, etc.
And sure, it has things that can be improved or tweaked but it's just a vanilla version: they will continue tweaking, balancing, improving and expanding it for like half a dozen years. As a vanilla version it's super full featured and very well polished.