Tried this hotel 4 years ago and given the impression it's an average hotel. The standard room was a plain room without any deco. At this time, I was given a room upgrade to the club floor. This room type is very different from the standard room or I can say what a 5 star hotel room should be, i.e. at least with some furniture like a couch and a working desk...etc. The standard room is just at 3 star level and as I remember it's just a plain room with a bed and a chair and a TV set.
Back to this room, the only drawback is on the bed mattress that they don't rotate the mattress every 1 or 2 months. The mattress is pretty uneven. Besides, I really don't like most of the Starwood's heavy quilt (except Sheraton Hua Hin) that you need to switch your air-con. to 21 degree. This is not good for sleeping as you will get much too cold and dry air.
Why I was given an upgrade is that I was given a wrong room which was occupied. This could be very serious though the front desk tried to fix the problem. In fact, they did every best to fix the problem. I told their management that I know it's their computer system problem. From the time of my booking to the check-in and also the various tedious things, I can say their overall computer system really has much problem.