We had a wonderful time. Room is the same as 1- bedroom suites from the hotel. Tower 1, closest to MGM, 18th floor, balcony with partial strip view. Everything as described. Fast response from host. Same experience as booking from the hotel, but at a lower price.
Only one issue, which has nothing to do with the host, but is a general MGM Signature problem: Only valet parking. And you have to tip them. I had no small bills the first day, and did not tip three times. Second day they used 45 minutes to get the car, and said they had to jumpstart it due to a dead battery. This was an obvious lie - the battery was full. I started tipping, and the car was there in 2 minutes the rest of the trip...
So: I recommend staying inn Lee's place, but you must bring small bills to tip the valet!