We stayed at Robert's place for a 4 day weekend on President's Day.
I can say it's my favorite Airbnb experience so far.
Robert was very prompt in responding to questions regarding check in process, arrival time, etc. He went above and beyond in stocking the kitchenette with fruit baskets, tea/coffee, orange juice, bagels.
The separate entrance was awesome, since we could go in and out without disturbing Robert and his family, who live above the unit.