Came for a conference. The grounds and facilities are great, but I can only give it two stars, and here is the reason.
If you need to work while you are here, don't count on it. The cell phone service is non existent. The wifi is available, but not much better. I ended up leaving during the conference to get cell service and Internet access down the street.
In 2014, cell service and good wifi are a must. The Red Rock folks, need to put as much attention to these amenities as they do the rest of the resort.
I won't come back, or recommend you stay here if you plan on using your devices at all.