The directions on the XP Paintball website are excellent, except the entrance is not clearly marked.
I recently had my son's 11th birthday party at XP Paintball. 25 eleven year boys came to the party. We spent 5 hours running around in the woods playing and everyone had a great time.
The price was resonable (It was $10 less per person compared to other paint ball fields). The service was excellent. Charles (I think he is the owner) was curteous and informative on the phone when we booked the party.
Charles and his staff quickly registered the boys (you have to sign a waiver), equiped them with their safety equipment and paintball guns, organized them into groups, gave a very detailed safety briefing, and then let them loose.
There were anywhere from 2 - 6 refs at all times and safety was their number one concern. At one point, the boys had a chance to watch "the big kids" play, and enjoyed the show. The field was a good size with lots of obstacles to hide behind. My husband just got back from Iraq, and enjoyed playing as much as the kids did.
It was an enjoyable day for both the kids and the parents. It was well organized, and both Charles and his staff are highly professional, curteous, and helpful. I would highly recommend this field.