The apartment was quite spacious. It was big enough to accommodate us 6 uni students in the bedroom and living room. We did not use the sofa beds on the balcony as it was a bit colder than the main rooms. The apartment facilities are very well maintained.
It was nice of Keiko to receive us at the train station. It was a great stay overall.
Just one thing to note: wifi is only available while at the apartment. No pocket wifi was provided.