I stayed there twice in the past week. I thought it was ok, but not nearly as great as the OP thought.
Both stays were C&P. First stay was 4 nights. We were supposedly upgraded, but the room was pretty small. The bed was right up against a wall on one side. There was free Internet, but this was the case regardless of status.
Oh, there was an enormous line at check-in (first stay), but no Gold/Plat line.
Daily breakfast was nice, but got very boring after a day or two. You could choose from 4 "sets" in the restaurant. I am not complaining... it just got very boring.
Lack of a lounge is an issue here. They invite Plats for drinks (the restricted menu referenced above) in the Bamboo lounge in the lobby. On two occasions, we were told there would be a wait of 15+ minutes for a table, and we gave up. One of those times, the hostess was kind enough to give me a coke and some of the packaged cookies they serve to bring up to my fiancee, who was feeling ill. The free drinks end at 8pm, which coincides with the introduction of 900 Yen fee for the jazz trio that plays there.
The hotel concierge was very good (one of them in particular, tho I forget her name). They went out of their way to help us with dinner reservations, even calling and emailing us in Kyoto with updates. Don't take their local (Meguro) restaurant recommendations, however. Those restaurants are pretty banal. Better to venture into other areas of Tokyo to appreciate dinner.
The free shuttle to the metro was great, and you could set your clock to the timing. Departed hotel every 15 minutes. You could go to Meguro, but they'd also drop you off at the closer stop, Shirokanadei, which might make more sense based on your destination. Return trip was only from Meguro. Before 10am, the shuttle goes instead to Shinagawa.
On our second stay, we were given a slightly more spacious room, but not a suite upgrade or anything.
The "Friendly Airport Limo" was fast and convenient, and costs 3,000 Yen pp. Our Sunday return to NRT took well under 90 minutes door to door. While the NRT Express might sometimes be a bit faster, it is nice to get on at the hotel and get off at the terminal, and vice versa.
Overall, a good value for C&P, but I didn't consider the Plat treatment to be extraordinary.