Hirotake´s place is a nice, well equipped apartment. The neighbourhood is really lively, with lots of restaurants and at walking distance to many touristic spots, as well as close to the underground. You have to climb up a stair to come in the apartment, but it´s not much (we managed with two bulky suitcases and our pushchair).
Check-in is super easy and even if you don´t meet Hirotake he´s left a nice book with all sort of tips and explanations.
Communication via messages before and after the stay was very good as well. I would definitively recommend staying at Hirotake´s place!