I. Loved. It.
The location is perfect. Right in the middle of Ginza (beautiful area), just off the high street. Quick access to transport: Ginza line, Yamanote overground @ Yurakucho. Akihabara very close by, as is Maranuchi (tour buses available here) and the Imperial Palace. Tsukiji and Kabuki Theatre walking distance (good luck getting into either, though).
Service is top notch. Desk staff will do whatever they can to help you (even the few who struggle to communicate in English) and cleaning ladies are courteous.
Wireless available for free in every room which is just exceptional. Reception is weaker on the last rooms of the floor (at least ours was - on the 9th floor).
Cleaning service always on time and efficient.
We had a double room and while it was rather small, it was bigger than what I expected for Tokyo. Very satisfied. The view from the window was blocked by a building on the other side of the street but I didn't care because I was in f*cking Tokyo. Many amenities provided. LAN ports, work desk, great light control system right next to the bed. High-tech multi-function toilets.
Overall it was a dream stay. I absolutely look back at it with fondness and nostalgia.