Hello Kagehitokiri. I looked at the Executive Suites and thought they were the least successful in the hotel (not as well designed as the other rooms/suites), so no, I have never stayed in one.

I just looked at the FS website and the most accurate picture is of the Premier Room. The views from the 1-bed Deluxe Suites are OK from the corner bathrooms, but nothing special. It is not like the Park Hyatt top floors, where you get panoramic views. Manunouchi is more about what goes on inside.

What you have to understand about this hotel is that you don't want to look at most of the views (bullet train station etc), so the designers have made the hotel more internal-looking, like a city Ryokan.