Grand Hyatt Hotel Tokyo

My parents stayed here while visiting me during my study abroad in Japan, even though my grandmother's house is just a 15 minute walk away!! They wanted their own vacation, I guess. Located in the Roppongi Hills mega complex, the Grand Hyatt is just steps away from world class restaurants, movie theater, shopping, clubs/bars, and the Roppongi subway station. The service is great, and the attention to detail is impressive. The rooms are sleek and modern with such delicious looking decor and fancy gadgets that you may never want to leave your room!
The only drawback about staying here is that you won't get the taste of "traditional" Japan. For that, you should travel outside of Tokyo and stay at a "ryokan" that includes a hot spring.
Some of my favorite restaurants are here, including the French Kitchen and Shunbou. The French Kitchen has a gorgeous lunch buffet, and Shunbou serves Japanese kaiseki (Japanese for lots of really small dishes with jewelry box-like presentation) They are a must, even if you don't stay at the hotel!

Basically, I want to live here. Just look at the photos on their webpage, and you'll understand.