Stayed one night. I would say overall, it was clean and quiet. We only heard a train one time at about 7:30 PM (and it's like 1/2 mile away) and we kind of enjoyed the whistle. You can hear some traffic from the I-40, but nothing that will wake you. I did check out the bathrooms/showers and I thought they were acceptable as far as being clean and stocked. We arrived at 5:20 pm and the office was closed, but there was a map with our name on it waiting at the information kiosk outside the office showing us where to stay. We had brought our Harleys in a trailer and asked if we could park our motorhome & trailer in the storage area for a few hours so we could ride out to the grand canyon before leaving. The park manager had no problem at all with us doing that.
Stayed here one night to try out our new RV (close to home). Beautiful area. You can hear some freeway noise, but nothing really bad. Good place for sure if you are passing through and need a place for the night.