Heres all the info Tubes:
http://www.angelfire.com/il2/pfr/
I've found that this place is great to take beginners, kids, etc just to get them familiar with fishing practices and let them get lots of casts in on different types of water.
In the summer I've been on a crowded day and that really turned me off, it was just jam packed with a ton of people bait fishing everywhere, which severely limited my ability to cast a lure into a lot of water.
But, when I've been in there on a lightly populated day I had a great time and pulled a few fish out. When the waters low you can actually walk out to some of the little islands in the middle area and get your line into some good structure out there.
The only things that have really bothered me about the place is you're going to get your share of people in there that don't respect the water or the land, drop trash, practice poor angling, and are generally very rude. But I guess thats everywhere these days.