I left about a year ago cause I was frustrated with the way the game was playing out at the time. I was wondering if some of the things I had problems with have been fixed. The main ones being the utilization of super small playbooks, zone coverage being useless, and all out blitz being God like unstoppable.
I did the same as you, checked the game out long ago, then left due to frustration. I came back and I'm really liking it now. I say give it a shot and you may find that its much more playable.