This is where we stayed while visiting Carlsbad Caverns and also Roswell NM. It was a convenient location for both.
The sites were of varying sizes, the site I chose online was not large enough for us, despite what the spec’s on ReserveAmerica said. There wasn’t a ranger on duty when we arrived and changing sites through ReserveAmerica would have resulted in a cancel fee, so since the park wasn’t nearly full at all, we just picked a different site in the first come/first serve section. We generally wouldn’t do that, but since we wouldn’t fit in the first spot, and I wasn’t going to pay a cancel fee when we weren’t cancelling, it was the only other option. There were plenty of other spots for others. A ranger did come by the next day and he said we were fine.
There are pics in the post I’ve linked below showing the site and the views from it!
We would totally stay at this park again if/when in the area. The only negative I can remember is cell service wasn’t the best.