daimo

We stayed at Park Tokyo at Shinodome (10mins walk from Ginza) just last Fall ... and we swear ... if we ever go to Tokyo again, we will always stay at the same hotel again.  (only down side ... if you need to go to Shinjuku often or will only stay along Yamenote JR line ... then the Park Tokyo is not for you) on the other hand, it's has DIRECT access to subway. (Not JR)

For reference, I stayed in Shinjuku Prince, Ikebukuro (sp?) Prince and local ryokans as well ...

浸溫泉 ... never did that in Tokyo itself except Hakone.  I heard Ito 溫泉 is good, quite far away.  Hakone is very touristy.. and their 溫泉 don't work for me.  But you can see Mt. Fuji though.

Good 溫泉 fixes backpain and smooth skins.  My favorite one is near Takayama and we'll definitely go again and again.