Rio-San's guidance to the route to the apartment from the JR was clear and he was patient to wait for us as we were late - figuring out the way to the meeting location. Moko-San answers and helps in all the questions that we have, since it's our first time in Japan. Will come back here to stay again if we are visiting Tokyo! :D
Portable WIFI was essential and really came in handy since we were on free and easy, and needed to rely on google most of the times.