We stayed there twice: in our first night in Tokyo and later before we left (October/November 2012). All together we stayed there for 5 nights.
The location is good: 10/15 minutes walk from the main Tokyo station and 5 minutes walk to the nearest subway line.
The rooms are small, but clean and ok decorated.
The staff also provides free cream and bath salts samples when checking-in.
On the second stay (4 nights), we were given a room on the 6th floor, located in the exterior corridor leading to the fire stairs. The room was facing the building next door, which was only one meter away from our window, keeping all the natural light away. It was also noisier than the first room we stayed in, as this time we had street noise from both the door side and the window side. Also, for some reason, we had very little phone network inside this room, often no network at all.
Wireless is not available in the rooms, only in the reception area. This was the only hotel/ryokan in which we stayed in Japan without wifi in the rooms.
There was also constant noise from the ventilation system in the bathroom not possible to turn off. It kept me from sleeping properly initially, but I suppose I got used to it.
We didn't take the breakfast option, but it was easy to find a coffee shop in the area.

I didn't like the fact that the staff refused to take a message from a friend that tried to contact me on the phone.This clearly downgraded my experience there. Apart from this, the staff was fine.

In the reception area there's a coffee machine available, but for some unknown reason, it is only working from 15h to midnight...

Overall it was ok, as no one goes to Tokyo to stay in the hotel room. But I don't think that rooms located in the external corridor and facing the 1 meter away building next door should be charged with the same rate as all the other rooms. In my opinion, the hotel has a lot more to improve...

Stayed here 2 nights in October and loved it wished we could have stayed longer. We used a taxi to find this place as it was a 15 minute walk from Tokyo station and we arrived late, make sure you have the name and address of hotel in Japanese as this place can been hard to find as its not on the main drag of roads. Once you have walked around in daylight hotel is pretty easy to find. Rooms were wonderfully not as small as I was expecting had 2 king singles and a little sitting area. There is a restaurant on the ground floor nice breakfast for 700 yen not much of a selection but this was ok for us. Looking at travelling again next year and will be booking to stay here again.

Only stayed for 3 nights but I'll stay here anytime in the future during my stays in Tokyo. Walk to the metro; 2 min. Walk to Tokyo Station; 10 min. Walk to fish market; 15min. Do I need to say more? This is the business district keep in mind so it plays to your advantage in getting decent sleep opposed to staying in Shinjuku where it may have a lot more action but its noisy as hell.
The staff was so helpful may I add. Sure, not 100% bilingual but they were always perfectly helpful with info and directions.
I always find it funny when reviewers slam the size of rooms of Japan (clearly rookies) ... its Japan people, real estate is limited and come on, its a place to sleep - not have a get together in your room.
Stay here!