I was one of the chaperones last weekend for a group of 90 High School choir students, competing in the Festivals of Music competition near Virginia Beach, VA. The Sheraton accommodated our large group beautifully! The buffet breakfast was terrific and the waitstaff was quick and courteous. All our needs were met and then some!
If you're planning a large school trip, check this hotel out. The rooms were very large, the beds very comfy.