This is about 10 miles from my house. I have been there for 2 different high school graduations. Their website says they have 6,860 fixed bowel seating (not sure how many they can put on floor). From what I remember the seating was on 3 sides with a stage on the fourth side.
There are 2 hotels within walking distance (across the street). Another that is less then a mile. 6 or 7 sitdown restaurants within 1 mile plus fast food places. A shopping center with both a Target and Walmart close. It is not off a main highway but a toll road. The major intersection closest to here would be North Garland Ave and President George Bush Turnpike.
If anyone has more questions about this area feel free to ask.