This literally is the best hotel I've ever stayed in, world-round. The service is impeccable, the concierge staff (Navy, especially) is incredible, and the rooms are top-notch.
For what we paid—US$160/night—we received far more than we could have expected. $160 a night in the States gets you into Quality Suites in some metro areas, so being downtown in a great metropolitan city half-way around the world for such a rate was a steal in our minds.
The food and other amenities not included in the room rate were pricey, but even those were possibly worth the money. We ate a breakfast buffet which was absolutely heavenly. It was so good I think we went back up to our rooms and slept for another three hours afterward.
They have a great gym and spa, and a nice outdoor pool and tennis court, with free racquet rentals.
The Sukhothai was well worth the money, and they go way above and beyond the call of duty to ensure that each and every guest has a fantastic experience in their hotel. We actually took pictures with the concierge and tipped everyone and their mothers when we left.
Again, best hotel I've ever stayed in.