I have a reservation in World Business Class on NW flight 36 DTW-AMS in early February. The aircraft is listed as a 75C. This appears to be the same as the transatlantic version of the 757-200 (International Atlantic) on SeatExpert. I was looking at the blogs to try to figure out what are the disadvantages of Seat 4A. It appears to be a seat by itself on SeatGuru and on the seating chart of my reservation. However, from reading other blogs it may be that this seat may be used for crew rest or there may be an adjacent seat 4B reserved only for a crew member. I selected 4A because I am traveling by myself and thought I would get some extra breathing room next to me. However, if it is going to be filled with a pilot then I will have to crawl over him or her to get to the aisle, etc. I would just as soon take an aisle seat in that case. What is the setup in this row of the aircraft?