This is a relatively inexpensive hotel right at Shiodome. This is an area that got a major redevelopment and several high rises were built and all connected to the Shiodome station both for the Yurikamome like and the Toei/Tokyo ones.
That means it is all new around it and you can go anywhere in Tokyo quite easily.
I upgraded my room to a deluxe twin and it is fairly spacious, even for western standards. The bathroom is WAY bigger than what you get pretty much anywhere in the US/Canada even on high er end hotels. Views are GREAT and service is indeed top notch.
Definitely worth staying as it is clean, well located and reasonably priced.