I should probably add: The seats are nice and wide, but I have a theory that the incline on the 737-800 seats are more than these. Perhaps I am wrong, do someone have data on this? I actually think I preferred the comfort of the 737-800 seats, though they are definitely due for replacement.
They do have good storage space though, in-seat 230v outlet, large touchscreen monitors. And my personal favourite: the bulkhead monitors aren't the type you swing out from the seat, but instead mounted on the wall in front of you.