I played this field in the Fall of 2002. We had a group of 14 people. The place was very well set up for rental and/or people with their own markers. All Markers used compressed air. They had filling stations for CO2 also.
To use the course you pay by the ball. At the time we went it was $7.00 per hundred. They also provided lunch after the game. They have 400 acres they own. The course is about 5 acres. The course is divided into 3 area's. A speedball course (intense) A light woods course where we played capture the flag. The 3rd area has a large metal shed with the backside open. We placed 5 guys in the shed and the rest of us attacked the shed and went after the flag they were protecting. The entire course is set in a small valley with several ravines that wind their way through the course making excellent topography to hide and advance in. Overall everyone that went there was extremely impressed with the operation, both experienced and new paintballers.
The people were great to work with also. I give it a rating of a nine although I am not sure of how you could make it any better. Since it is the only proffesional course I have played I cannot compare it to anyone elses.