The Airbnb deal for the Sahara is attractive because it avoids the "resort" fee (the Sahara is not a resort in any stretch of the imagination.) But the rooms are nice, clean and comfortable.
Drawbacks:
1. Wifi is awful. I could not get registered for 2 consecutive nights. Yes, why do you need wifi in Vegas?
2. All hotels should have accessible HDMI input ports on their TVs. Ours were not accessible because the TV was mounted tight against the wall. Again, Vegas is a place where typically you spend as little time as possible in the room, but for us, we were there on a family matter and were just looking for a clean comfortable room - which it was. But we wanted to stream a movie at night, which we couldn't because of no wifi and no way to connect to the TV. Contrast that to a place like the MGM where ports are in a separate box on the front of the furniture and wifi connection is easy - just enter your room number.
3. Housekeeping phone extension was busy for 10 minutes. Had to resort to call the hotel operator.
4. No printed hotel guide, nor a QR code for a link to an electronic copy was available in the room. I had to call the operator to find out where the ice machine was (signage in the hallways is awful.)
So, if you're looking for a place to sleep, and nothing else, the Airbnb deal is pretty good. Otherwise, other hotels do a better job.