Flew 1430 IAH-LAX on Monday, 12/17 in Y, seat 27C. Overall, other than the seat being a bit tight, I was impressed. The FA's didn't hit my legs with the carts. The hydraulic pumps are definitely a loud whine during taxi, takeoff and landing. Lav is a bit noisier than I'm used to on Boeing a/c.
I'd fly it again in Y. For a mid-con, I arrived refreshed and generally in better condition than in similar circumstances on B752 a/c that I'm used to.