There was no one around the entire night, and for the price, it was very nice with all the hookups for $13.00. The weather was windy and stormy in the distance, which made for excellent sleeping weather and a beautiful sunset and sunrise. Some cattle were in pens not far off, but otherwise, it was vacant.
Alamo is a small Mormon town, so it felt safe even though we were the only people in the area. When it got dark, there was a quad driving in circles very close, and sometimes coming directly at us. I was a little nervous about being alone out there so I called 911, and they sent an officer out. By then, the quad had gone, but we felt safer because the officer said he would be nearby all night.
The area has a large lake and a river running through it and is very lush and green in some places. They sell fishing supplies if you feel like fishing in the middle of the desert. :-) I highly recommend it as a nice stop-over.
The Sinclair gas station has a well-stocked grocery store, but they're a dry county so if you want a beer you need to go 7 miles up to Hiko and you'll be able to buy beer and wine.