I usually only fly UA or AS but we will flying to Puerto Rico on first class award tickets which we acquired using AS miles. When we made the reservations, the AS agent said we would randomly be assigned seats and would need to contact AA to pick the seats we really wanted. When I called AA they said there would be $15.00 charge to change the seats. I can't believe this Mickey Mouse nickle and diming. I eventually asked to speak with a supervisor who eventually changed the seats without charge, but WOW is this normal for AA?