My Experience so far as a new player.
I must say it's been absolutely miserable so far. I would go as far as to say close to 50% of my games have had at least one person afking/leaving the game, and the majority of games have been really one sided one way or the other. I bought a 1 day experience boost and have lost nearly every single game since, most due to afking, and had 2 remakes in 10 games.
I'm seriously thinking of asking for a refund for the boost as the experience has been so bad.