Expect the best
Amari Watergate is within walking distance of the most variety of shopping and eating choices one could ask for. The best tourist attractions are only a short, inexpensive (100-200 baht) taxi ride away. It has earned 5 Stars for a reason; everything is clean, well maintained, works properly and the guests are treated like royalty. From the little girl who opens the front doors, to the housekeeping staff, to the hotel management, everyone treats you like family.
I live in Thailand, and earn a Thai salary, so it is very expensive for me, but worth every satang in cost. For foreigners coming to Bangkok, not expensive, and will unquestionably exceed your expectations.