We went to the RRR for Thanksgiving with no reservations and it was absolutely perfect. I recommend the Pasadena-style ribeye, but my gf had the vegetarian dish and was also very good. The guest room was nice and clean -- definitely nicer than what I've experienced on the Strip.
This is by far the nicest legitimately haunted place in Las Vegas. My gf and I both saw the ghost dog separately, but it was friendly and quieter than most real dogs, and much less creepy than we were led to believe.
The staff at the Robertsmith Ranch Resort is unsurpassed in their hospitality and friendliness. This is truly the only 5-star pet-friendly resort in Las Vegas.