Very good E+ legroom, the seat in front of you doesn't recline which helps a lot. It can be a bit cold, but not as much as 21A/F. AC power and AVOD. Not a bad way to cross the Atlantic in Y.

Unless you really want an aisle seat, I'd probably go for a window seat (8F would be best, alternatively 7A or 21A/F) if you're planning to sleep as there is usually quite a lot of traffic going up and down the aisle.