we did! and i'd do it again in a second. we started labor day weekend which was really hot and really crowded, but by tuesday, the crowds were completely gone. we felt like we owned the place. the hours were shorter, there were fewer parades and such than the weekend before and almost immediately, we started seeing signs of renovations and refurbishing at many of the hotels and attractions, but it didn't bother us at all. the wilderness lodge was beautiful and so peaceful. the parks were empty and that is the best feeling in the world not to have to wait on lines. the weather was still hot, but made the empty pools and waterparks enjoyable, the restaurants were empty too! i think later in september the crowds pick up, but all in all it is still a slow time of the year and it is still hot, but getting cooler. good luck!