Sites are on fairgrounds property and are just a place to park on pavement. Full hookups (rather uncommon for fairgrounds), although my sewer tap was clogged/full and would have overflowed had I used it. 50-amp plug was hard to insert all the way because the cut-out in the box for the cord was in the wrong place. Sites are narrow and short for big rigs, but everybody just sort of did what they could and would hang out into the "street" if necessary. There was grass on the other side of the street, so maneuvering wasn't too bad even with rigs sticking out. Location is convenient to downtown and the Lane Motor Museum, and for southbound travel out of Nashville, which is why we picked it over the RV parks on Music Valley Drive. The rate was $35, which seemed quite high for what you get. My experience is that a fairgrounds space like this should be more in the $20 range. But it has a lot of sites and would likely have space available when other RV parks are full. Rating of 3 takes into consideration the relatively high price.
Appears to be a former KOA (A-frame office) with mostly permanent residents in the relatively shady inner part of the park. There was a site available there, but it had tree issues (we're over 13 feet tall) so we opted for one of the pull-throughs in front that seem to be used for short stays. These are level dirt sites with full hookups (30 amps) overlooking an auto repair yard, with no trees whatsoever (and facing west). Probably around 45 feet long. There is a tent site adjacent to the front pull-throughs, in a small grassy area with lots of shade. Park is adequate for overnight or for a few days while visiting the area. It is at the end of the Central Avenue bus line, if public transportation is necessary. The RV parks farther west aren't on the bus line. $24.38 rate includes 10% Good Sam discount and 13.88% tax. This is what they quoted on the phone, but they didn't (but should) say it includes tax because it's pretty high.
Generally concur with other comments--large well-maintained park with level spaces adequate for big rigs. Near airport but no airport noise, and no traffic noise. I didn't hear the trains that some mentioned, but the park is so big, I could have been much farther away from the tracks. The east section with lower-priced long term spaces is more of a trailer park, while the west section is more short-term and more like a typical high-turnover RV park. The park is located in an industrial area, but it's not scary. I walked/strolled downtown in about 30 minutes. Two things to be aware of: (1) I deposited outgoing mail in the group of mailboxes long-term residents use--about halfway down the main road through the park. That mail never got delivered; I don't know if it's still in there or lost somewhere or what. I called the office from our next destination, but the girl who answered the phone didn't understand much about mail (probably a teenager thing). (2) The park's web site claims a self-service RV wash that will handle the biggest rigs, but the clearance marked on the bay is 11'8"--not big enough for mine.
Stayed here for a week for a car race at Reliant Stadium. We used the city bus to get to the stadium every day. It stops right in front of the park, and goes right by the stadium. Extremely convenient, but be aware that Houston buses aren't great about timeliness, but they do show up. The park is meticulously maintained and had the nicest utility hookups I've ever seen. Not a great neighborhood, and absolutely nothing within walking distance. But convenient access for activities in Houston.
Posting this a few months after our stay. The person who stayed in December 2006 mentioned someone possibly living in his car here--I suspect it's the same guy we saw every day we were there in September, and the inside of his car (doors and trunk open) definitely indicated he was living in it. Never saw where he went when the non-campground part of the park closed. The campground is woody and the reservation website is accurate in describing the sites (we're 40 feet long, so it matters). There weren't many people when we were there and it was really mellow, but it looks like weekends are always full and reserved months in advance. Nice little nature trail and wide open hike/bike trail open to the public behind the park. Highway 76 west of the park to Interstate 15 is a twisty road that has a LOT of rush hour traffic. Map says 10 miles, but it feels like a lot more, especially in a big RV.