So... Heading to Japan in March and looking for a hotel in Tokyo for 4 nights. Right now I am primarily looking at the 4S and the Grand Hyatt. Thoughts on these? I'm sure the 4S is better service, but what about facilities - want a great room, but am relatively low maintenance? I think I prefer the GH location, but am willing to be swayed.

The clincher would be if one has a significantly better concierge. I'll be looking for reservations at some combination of the following: RyuGin, Narisawa, Sawada, and/or maybe a top fugu place. Thoughts as to who would be better positioned to work magic?

FWIW, if there is another hotel that would be better, particularly for the concierge, I'm all ears. The Park Hyatt seems a bit pricey for what it is and I'm not enamored with the location, but maybe the MO? We stayed at the Conrad before and liked it, but were probably looking to stay elsewhere.