We had a 5 nights stay.
I would recommend more this rental more for 6 people (we were 7 and it was a little bit too tight for us), but except this point we did appreciate very much this place. Very calm and enough close to both subway (Iriya) and train (Uguisudani) stations (around 10min walk for each stations).
I would recommand that place with no problem.
Mickaël