Just got back at 1:00 a.m. this morning. We were at WDW from Fri., 4/14 through Fri., 4/21. the parks were crowded but very doable. We were at MK twice till around midnight, including our last night, Thursday. Saw the 11:00 SpectroMagic parade and had no trouble getting a good spot. We were in Frontier land, and it was only 1 person deep, but my daughter and I walked over from Space Mountain to where my husband and son were waiting and passed the castle, and there were tons of spots there, too, even at 10:45. Could walk right on to most things. It was great. We really had little trouble all week, especially with the careful use of fastpasses. The only place we kind of fled because of the crowds was AK. It was difficult to get around because of the combo of the layout and crowds, and the FP time was too long on the rapids ride, so we bagged it and went swimming at the hotel. Kids weren't too disappointed, and neither were we. I was really expecting the worst in terms of crowds, and was very pleasantly surprised to find we could do everything we wanted with minimal hassle and a little planning.
