None in Illinois. I've played at several locations in Maryland and Washington State
The staff claims they focus on service and they are totally correct. THey are courteous and very helpful. They put on a great paintball experience. We highly recommend for novice and experienced alike. Especially if you have a mixed group with some people who've played before and others who are frist time or novice.
Prepay for paint because you get a better deal!
Also, rent the jumpsuits they are totally worth the extra $7.
The fields are quite large (larger than any others I've seen) and you can move around a ton so this is a great course for a large group.
We went there with 12 teenagers for a birthday party and they all say, "it was a blast".