There's a new high-end hotel in town:
http://tokyo.andaz.hyatt.com/
http://www.bloomberg.com/news/2014-0...-in-tokyo.html
This is Hyatt's new hip brand, located atop the latest Mori Building complex in Toranomon, near Kamiyacho stn. Introductory rates from under Y40,000, with breakfast thrown in.