A very nice and clean apartment, 5 minutes walk away from the nearest station and about 10 minutes from Shinjuku via the metro. There's plenty of space for two people with big bags, especially considering how small the average apartment is in Japan. The only thing that's worth considering is the level of noise from the two-level motorway outside the apartment building, this wasn't a problem for us (we're heavy sleepers and suffered from jet lag) but the traffic noise might affect some lighter sleepers. Yuka was very helpful and quick to respond to every message, letting us drop our bags off before we checked in to make things easier.