Beware that most of these seats (11-12-13) have no windows... depending of the aircraft configuration and type. Because they use different aircraft type depending of the load factors etc... your 767-200 could become a 767-300ER 24hrs before your flight..

I now avoid row 11-12-13 and start bookin row 14 when exit row is not available. The space in the bulkhead is not that great and the center row is almost always occupied by family with babies and small children. If you have a baby this is where you want to be because they can install a small bed in front of you. very convenient if the aircraft is full...