We stayed two nights on our way south to Big Bend National Park. Because it was winter we were not interested in the lake (it was cold) but we appreciated the ample space between each campsite. We had a covered picnic table and fire ring.  Overwise there is no water, sewer or electric.  They do have vault toilets conveniently located throughout the campground.  It's a self-serve place. We just paid our $6 fee at the entry kiosk and that was it.  There was quite a bit of traffic in and around the campground as it appeared some people stay quite awhile.