Quick play is pretty much practice mode now lol.
I managed to get to 56 in Ranked mode but started to get frustrated with the way I'd yo-yo between 57 and 54 depending on my teammates (I suppose that meant they had nailed my rating).
So I'm exclusively playing QP until the end of the season just to see what the Ranked Rewards are like (I know we're getting CP) and possibly how Ranked will be altered following its first season.