I have stayed at all SPG BKK properties with the exception of Le Meridien Suvarnabhumi Airport. I love Le Meridien Surawong, but having stayed 5 times so far at Sheraton Grande Sukhumvit, I have to say that SGS is THE best SPG property. It is probably safe to say it is one of the best in Thailand for its category. Their F&B is very strong and service is impeccable. Decor might not be the best and most current (and I am very picky about that sort of thing), but it is an absolutely fine and comfortable hotel.