Park was very busy as this was going into a holiday weekend. Office staff was very helpful in helping us choose the right spot. Bathrooms were clean. It's in the town of West Yellowstone vs. the country, so feels a little less like camping. We were only here for one night as we were on our way to Idaho, but I would stay here again.
First of all, best restrooms I have seen! Newly remodeled and clean as can be. Occasionally, there was an issue with the on-demand hot water system. Owners and camp hosts were very friendly and suggested things to do and places to eat in the area as area appears really remote at first blush. It is a very quiet campground in the evening, so great for sleeping. We had a tree in our spot which was great for shade. Spacious spots and well marked. WiFii is good. Cell service for Verizon is a little spotty but it is a mountainous area so to be expected. The office has a cute shop. Laundry is available from 9 AM - 6 PM.