We were there over Father's Day weekend in 2004 (not quite the end of June) and it wasn't too bad. With the 50th however I am sure this year will be a much different story! On the bright side, hours will be longer, fireworks will be happening more often and the Snow White Show and DCA Electrical Parade should be back up. We were there last week and the crowds were low which was fabulous but we missed seeing Electric Parade and Snow White and wished Remember would have been shown more (saw it three of our 7 nights). We were also bummed to have to leave the park at 8:00 on several nights. It's a trade off! We are going back this June and know it will be a different dynamic than what we had this past week but still want to give it a shot. With fastpass and arriving EARLY, right at park opening you can still see and do quite a bit. I would allow at least 3 days for that time of year.