I gave it a 4 because of the terrific staff. We did an overnight with a 40' rig towing and had everything we needed and more. Didn't need to unhook. They ARE big rig capable. Not fancy - just nice.
Very well designed with many amenities. Full concrete pads, wide sites. A little pricey for Chowchilla but a great stop or destination. Golf and an outstanding restaurant.
We live in the San Juans and use this park as our staging at the beginning and end of trips and for stays on the mainland. It is a casino park and therefore has few amenities of its own but is a very nice park physically. Many long, level pull throughs with 50 amp full hookups, WiFi, etc. No restrooms,etc - all that is in the casino. Great place to park and stay but not a destination site. Two nights for the price of one in the off season.