Since we are doing a multi-day "rush" from NY to FL we are stopping only overnight and have chosen not to stop in a campground unless it is convenient to the route. Our first night was in a casino parking lo and last night was here at a Pilot truck stop. It's a bit different from the usual ones as the truck lot is up a hill from the gas station (diesel is up here) and restaurants but otherwise relatively the same. There are 12 reservable sites and we did reserve one and pay but I am reviewing this as a free place because there is little difference overall.
1) the truck stop is right off I-81/I-64 easy to get to and GPS will direct you up the hill to the truck lot if you use the 3541 Lee Jackson Highway address
2) the reserved places ($12/night) back up along a fence and face the larger free lot. I was told that a Monday night would be quiet but by morning every space in the free and reserved was full so if you need to stop there calling ahead to reserve a spot would be a good idea. You do NOT need to pay until you get there and can change your mind, so if there are free spots you simply park and cancel your reservation. We chose not to simply because we are slaves to our cat and he was happier with us parked next to a semi-permanently parked container that was silent. The reserved places are, however, not quiet and there is rad noise though neither bothered us much.
3) there is a covered walkway from the lot down to the station where there is a Subway and an Arby's. There is apparently also a good German restaurant across the street but closed on Mondays. Be aware that if you are walking a pet down this walkway there are 2 semi-feral cats living to the right of it. They have an "igloo" house but a dog might "get excited" though there is a fence.
The sites are all very flat and easy to get in and out of-in the early morning many of the truckers will be leaving so there maybe a line to get out.
I did not use the showers or the restrooms so cannot speak to the cleanliness but there was a bit of trash along the fences. There is construction going on up the hill and perhaps that explained it.

Bonus: though we didn't need it the store is stocked with supplies and truckers being the nice guys they are if you are having any sort of an engine problem there are plenty of people around to help.