Mary is a very gracious and kind host. My high school son and I were very comfortable staying in this top floor unit. Very fresh feel to it and looks like newly remodeled bathroom with pretty marble/tile shower. Great location a few houses down from Ritz Carlton. Nice secure iron gate and very classic San Francisco old world charm to the house. There are a a few flights of steep stairs but so elderly/disabled may want to stay in lower unit. My knee replaced 1 year ago and I had no problems getting up and found it worth the extra effort for the light open space. Room felt very private and the bed was super comfy. My son was okay on the extra floor mattress and bedding Mary provided.