i stayed in Blue Wave Inn one night for Sumida-gawa firework festival. the hotel location was ok, took me around 5-min walk to asakusa temple, and 10-min walk to the river/firework area.
room was small, but it's same as other tokyo hotels. FREE INTERNET in the room, though there's no wifi.

As a business hotel in Tokyo, you don't expect too much. The price is reasonable. The room is small as we expected. It's not easy to open suitcase in room. We stayed in bluewave Inn, Osaka before. The staff in Tokyo is not as nice as Osaka. The room has a bit smelly but my wife said acceptable. The lobby is nice and the facilities in room is also good. It is recommended for limited budget.

Location is close to the temple and walk around 10 mins to subway. But it is a bit disappointed that many food store around close early at night.

I spent two nights at this property, immediately adacjent to Senso-ji, and would be happy to return. Decor nice, with dark blue foil wallpaper accents (as opposed to usual all-over beige of many Japanese hotel rooms), nice size by Japanese standards, all the usual amenities. Breakfast is very good buffet of Japanese and Western items. Many, many Western guests, and the most common language at breakfast was German. Staff accomodating and pleasant.

Only issue was that 'non-smoking'' n many Japanese hotels means "will use deodorisor"to get rid of cigarette smell. while we noticed there was a cigarette smell we coped. The room was very comfortable and hotel staff professional and helpful.