They are fun as shit. I usually am an ultimate player through and through but pro has opened up a whole new game. It's gotten me closer to a few friends and we are having so much fucking fun. I'm a fifa level 56 and even with all the upgrades you start off as 81 max. All of the unlockables have to be unlocked through achievements.
The only thing that sucks is if you have a lot of computers playing, they are really really terrible. But for real, if you haven't tried it and play one the xbox one send me an invite: LandauCalrisian