Yes; I'm revealing my age with that title riff on Murray Head's 1984 hit "One Night in Bangkok", from the original score for the musical "Chess".:D
Anyway, to the review: Yes; I recently enjoyed a great 6-day "welcome-home" stay at the Met in Bangkok; it had been some years since my last stay. (See also my original review for the hotel, from way back in 2005.) I can happily report that the Met's not only aged very gracefully since my first stay 8 years ago, but also that it's just as lovely, cool, hip, and service-oriented as always.
My recent stay at the Met was actually a last-minute (same-day!) booking, as I was dissatisfied with the noise level (from the street as well as inside the property) at the Marvin Suites. Fortunately, Expedia had a good 3rd-night-free offer for the Met, and I booked it, paying $125/night plus taxes and fees for the hotel's signature Metropolitan room, which measures over 50 sq. m.
All the goodies I remember from past stays were evident as soon as I arrived: smart young staff in Yohji Yamamoto uniforms; lovely, relaxing lobby with light scenting, soothing ambient lighting, and subtly sexy music. Check-in took a bit longer than normal, even though I'd Skyped Expedia and asked them to reconfirm the last-minute booking with the Met. No matter; I waited only a few minutes while the check-in clerk verified my reservation, advised me of the standard deposit against my credit card, and graciously met my request for a non-smoking room on a higher floor.
I received my key to a 9th-floor room and was on my way.
The Metropolitan room: While the Met offers smaller (29 s.m., I think) "City" rooms, I've only stayed -- and would only stay -- in one of their Met rooms, which are huge and beautiful. Eight years of solid guest traffic had barely taken its toll on my room; the lovely dark woods for the floor and furnishings were intact with only a few insignificant scuffs. Same for the huge limestone bathroom, with the best walk-in shower (no door, but so large a space as to not need one) and pristine white-porcelain oval tub just below a picture window with its own blinds and indirect lighting; while I saw a few scuffs and filler marks on the limestone and tile surfaces, nothing detracted from the peaceful, cool, luxury of either room. The sleeping/sitting area of the room puts many other hotel and apt.-hotel "suites" to shame. The king bed, on a solid wood platform with three individually controlled mood/reading lights (not to mention nightlights below the twin nightstands), was super comfy, with cool white sheets and a soft, warm duvet. The TV, a good LCD unit, was a bit small (32") for the room, but hey, the default station (comes on when TV set is powered up) is Fashion TV, with plenty of other international and Thai choices, so no complaints there, either.
Housekeeping: I always try housekeeping staffs' patience at hotels when I'm on holiday, as I usually am out late and tend to sleep in very late. No problem for the Met staff; they took perfect care of my room every day, replacing the multiple bottles of free drinking water, fresh fruit, and coffee supplies. As other TA reviewers have mentioned, housekeeping also provides a great evening room check and turndown service, so even if you're in your room more than you should be on holiday, all is taken care of.
Dining: One word: Nahm! This is one of my favorite restaurants in the world; exquisite Thai that is indeed a refinement of the best that the already world-class Thai cuisine has to offer. I ate dinner at Nahm twice -- getting the relative bargain of the set meal (six "mains", served all at once with perfect rice after the starter plate, with one's choice of dessert) both times. Both meals -- the first with white wine, and the second only with (lots of) Singha beer -- were among the most amazing and thrilling I've had anywhere. Do/do dine here no matter what; reservations are a must, as Nahm is often booked up weeks in advance. While I sat outside both times (during Thailand's very warm "early spring"), I was comfortable, and the candles, flowers, and view directly on the Met's mood-lit pool (separated from the dining balcony by beautiful large pots) more than made up for the indoor-dining A/C. I also ate twice at the Met's all-organic/natural restaurant Glow; I can also highly recommend their offerings (especially the BHT 795 set menu, which includes all of Glow's best dishes) and even the decor, which some have described as "clinical" or "hospital-like". I wouldn't say that; while the chairs are white plastic, they're very comfortable and stylish (kind of a updated take on 60s mod). The staff seemed rather reserved/shy, but they were fine and there when you needed them. I particularly recommend the "Liver Cleanser" juice (no alcohol) cocktail; delicious and may help at least a bit with the results of the previous night's partaking of Bangkok nightlife.
Location: The Met's right off the right end of Sathorn Rd., between Soi 1 and the newish Marriott Sathorn Vista. Not all taxi drivers know where it is, but if you tell them "Banyan Tree", they know that, and the Met's entrance is just after BT's (on the left).
I didn't use the great spa and massage services of Como Shambhala -- I used them during previous Met stays; wonderful -- but did use the pool, which is great for either just sunning or doing laps. The pool attendants are shy (but very nice, as always with Thais) and loaned me the same great Speedo swimming goggles each time I used the pool. There are food and drink menus for poolside; I had a great pad thai one day.
Staff: Most Met staff are friendly and remember you, with most (but not all) giving you a big "wai" (the Thai greeting with palms pressed together) and "Suwasdee Kha" ("welcome) whenever you return to the hotel. Nice. As others have noted, the concierge is great and will happily dispense local info. or make a reservation at a restaurant elsewhere in Bangkok for you.
I even enjoyed a conversation in the Met lobby with Jorge, Met's General Manager, and we talked about the hotel scene in Bangkok and what I thought was keeping the Met competitive with top hotels in the city.
Conclusion: I love the Met; it's a very well run hotel, and I guess it's missing half a star (4.5 as opposed to its former 5) maybe only because it no longer has a restaurant that's continuously open from early morning until late dinner hours. (But it does have a very fair 24-hour room-service menu.) In any event, it's a fine 5-star hotel in Bangkok and is very much still among my two or three favorite hotels in this hotel-rich Asian supercapital. Stay and enjoy!