I guess this really depends on the people you play, their connections, combined with the servers. So it can be a pretty random inconsistent experience for gamers, there isn't going to be a definitive answer.
My friends and I played last year a ton, and we were probably the very few who didnt really have any lag. Games were really smooth. I know it was against the norm of majority of users.
I played 2 games last night with one of my friends I usually play online and they were easily the two worst lagged filled games I've ever played in the show.
There isn't one definitive answer.