The apartment is very convenient location to get around Tokyo and close by a lot of Izakaya, yakiniku, family mart, and cafe just short walking distance 1-2 min! (but some only open on Thursday - Sunday) As other reviewer mention the apt have steep and narrow stairs so heavy luggage need to be careful, room is also quite narrow so not much space to put luggage. We don't mind with the cramp place because location is close enough with Shinagawa station for us. Overall it's ideal for light travelers 1-3 ppl with no heavy luggage.
The host also quick responding to any questions/inquiry so very helpful whenever you need. I'm highly recommended if you need to stay in Tokyo!