Originally Posted by
LaLoretta
Otherwise, the best bargain I know for a decent place in a great location is
The Asia Center of Japan
http://www.asiacenter.or.jp/
Gambatte okudasai
I concur with LaLoretta, I stayed at the The Asia Center of Japan for several nights whilst in Tokyo and it was cheap, safe and friendly and convenient.
As some others have mentioned you are only there for sleep and ablutions so those are the areas where you need to be comfortable. The Asia Center of Japan met all of my needs in those regards.