The rating is a bit higher than it would be in other areas, but Sacramento and vicinity are notoriously lacking in nice, quiet, secure RV parks. So in comparison, this one is great.
In general, the park is well-managed by friendly, competent staff. The paved parking area is a bit sloped, but the gravel parking area in the back lot is quite level. The bathrooms and showers were very, very clean. The noise level was very low except for the rare occasion that some big event at CALEXPO was occurring at night.
The lights just were not that bright -- I don't know what the other reviews are referring to. Also, although it was a large paved parking lot area, there were quite a few trees planted throughout and surrounding the park. To the side and rear of the park there is a bike trail that connects to a very large system of bike trails along the American River.
The location is central and it takes only minutes to get to downtown. The security was good -- surveillance cameras, large fences surrounding the park, and police/security cars patrolling the area.
We enjoyed our stay and have returned to stay again. This is where we stay on our frequent visits to the area.