Great access, but pricey
The campground itself is pretty and well kept. Some sites are a little tight, but most people aren't there to camp, they're going to the park or a concert, or both. Unless you're a season ticket holder at Darien Lake, you will be forced to purchase tickets to the Darien Lake amusement park when camping here.
The camp store is well stocked and the staff are nice. Access to the park is very easy. The walk to the concert venue is long, but flat and easy.