We stayed here for a few days after skiing in Niseko. When searching for hotels in Tokyo we found lots of them VERY expensive for what we needed, as we had two children with us (3 & 5 years).
The rooms here were a really good size, with great views. It is also in an excellent location - very close to the station. We had breakfast downstairs, which I couldn't really complain about and the restaurant downstairs in the basement was fantastic! Full of locals, which is always a good sign.
Service in the hotel was excellent, although we did have a few issues trying to get wifi/computer access. The hotel seems to cater more for Japanese travellers, rather than international ones, so there weren't many tourist maps/attraction brochures in the foyer, like you'd find at most hotels. This wasn't really an issue, as we were happy to look online.
Overall a great hotel and a real find in Tokyo!