I gave the park a 8 because of the nice primitive campsites with good views of the rocks and country side. No facilities here except for vault toilets. The park is kid friendly in so far as there is open areas to play. No playground or other facilities. We camped here in a Motorhome.
There are several campgrounds in the City of Rocks, but not all can accommodate large RVs. The sites are all dirt and some are not very level. We stayed in site #7 which was large enough for our 36' class A, but not very level. Getting there is the tough part. From Almo you need to drive about 3 miles on a rough dirt road (not maintained in winter and very messy when wet). We would say here again, but would think twice about bringing the RV. No cell reception from either AT&T or Verizon. Weak signal in town though the local market offers Internet access. Water (threaded spigot) is available at the Visitor Center so fill up there. There is a dump station just before the dirt road into the campground. Lots of hiking and biking trails with great scenery. Dogs are allowed on the trails! Castle Rocks State Park has a nearby campground that may be better suited for RVs. We camped here in a Motorhome.