Please, can you give me your feedbacks on these two hotels? They are both in my short list for a 4 nights stay and I have to take my decision... (price is more or less the same..).

Thanks, ciao.
Gianni

I stayed at the Keio Plaza and was very happy with it. The rooms are very large by Japan standards, has all the amenities and a friendly staff in a good location. Totally western and without charm but in a great location and usually at a great price.

They're in different parts of Tokyo. Keio Plaza is on the western side of Shinjuku, about 10min walk to the main station, slightly longer walk if you want to take the metro. New Otani is in the central part, 5 min walk to Akasaka Mitsuke, which is served by two or more subway lines.
Keio Plaza is better if you like high-rise view of the city. New Otani if you're going to be active, taking lots of subway rides.

Thanks, I think that our choice will be the New Otani!
Grazie again, arrivederci
Gianni

I loved the New Otani but I don't know the other hotel.