By North American standards this is probably a 4 star hotel, it's also pretty centrally located, and although it's not very cheap by Thai standards, you can get a very nice room (with a river view) and a full breakfast buffet for around $60CAD a night = $40US.
Theme: HotelComparison: about averageDirections: It's located along the Chao Phraya river which makes it very easy to get around by boat (translate as 'get around Bangkok traffic and pollution'). There's a River Express Boat stop about 5 minutesOther Contact: http://www.royalrivergroup.com