Yes. In many cases the seatback in the last row will not recline. Aisle seats can be unpleasant given people queuing/passing eachother for the WC. Only plane I have flown in w/o a WC in the rear is the Q400. I am sure other planes like this do exist. Bottom line, if its a short flight, who cares. Bonus is, they are supposed to be the safest seats.