Their park is great right now. They just haven't made enough snow for a lot of jumps. They had one 20-25 footer when I was there on Tuesday.
It's always crowded during Christmas break. Get here early (8:30 latest) to get a good parking spot and your ticket and it usually doesn't get packed until 11 or 12. Most people sit in the chalet all day lol.
It's probably a bit icy, but I would say it's finally worth the drive for you guys from Illinois.