11A has a toilet right behind your head, the use of which may or may not be a disturbance. Also both 11A and 11K run the risk of there being an unhappy baby in the bassinet in 12B or 12J, and then also in the front row of economy directly behind those. Any disturbance actually noticed from any source though probably depends on how much of the flight you tend to spend wearing earphones or earplugs anyway.
All of the B and J seats are generally indicated as being disabled accessible. They are all standard seats, just easier to slide into from the aisle than their rear facing neighbours. I would also suggest that once you have the door closed, privacy differences between forward and rear facing are much overstated.