If you love roller coasters, you must visit this park!! And 1 day will not be enough. I'm finally getting around to writing my review of a 3-day trip I took in June. It was my first time there in over 10 years, which means there were a few new coasters I had never tried. I went with 3 of my friend's kids -- a 15 year old girl and twin 11 year old boys. It was their first time at the park and they loved it. Some were a little apprehensive about the rides (to be honest, i was too with Top Thrill Dragster). Anyway, we went June 24th - 26th. Sunday was not busy at all. Monday was a little busier and Tuesday was even busier with long lines. I was thinking about staying at one of the hotels the park owns, but instead stayed at the Fairfield Inn, which was probably the farthest hotel away but still didn't seem like a bad trip to get there. I believe the cost savings was worth the few benefits of staying at a park hotel. Although sometime in the future I'd still like to try that out.
We rode every coaster at the park. Millennium Force is still my favorite. We also loved Magnum, Mantis, Maverick, and Top Thrill Dragster. Those are definitely the top rides in the park. Don't overlook the other coasters and rides though. Stay at least 2 days to try and get them all in.
The park was clean, the employees were friendly. Can't wait to go back.