Perfect place to stay in Tokyo... BUREAU/B-SITE
If u need to stay mid to longterm in Tokyo a serviced apartment might be better than a hotel or else. The Apartments are perfectly located at main Yamanote locations and are almost luxurious, if that's what your after. My first stay was in Bureau Shinagawa and it was a dream :)
BUREAU is more for business people and B-SITE attracts a younger clientele but has very nice facilities and even better locations. I am NOT affiliated with this firm, just a big fan. Minimum stay is 2-4 weeks i think...add up 30 days of hotels and make the math..
This tip has the address "Akihabara, Ginza, Nihombashi, Shinagawa...lalala"