Ginza Ginza Ginza! THe Marriott Shinkichu is far away and not on the main subway line. You need to take a JR train. And the subways don't run late at night so if you go out late, you'll have to take a taxi. The Ginza Tobu was a Ramada Renaissance years ago and yes, the rooms are tiny. But most hotel room in Tokyo are small and, in an exciting city like Tokyo, who stays in the room anyway. I just did a 3 night award stay there and we got full Japanese (good) or American (not so good) breakfast included. I thought about the New Otani but it requires so many more points and it really is a huge, bustling hotel about 10 minutes away from the nearest subway. In a frantic city like Tokyo, it was nice coming back to the peaceful Renaissance Ginza. Just my 2 cents.
Have a great trip.
Paul