This is the only international-standard hotel within an easy walk of the museums, Golestan Palace and bazaar, and as such is popular with tour groups. The quiet, mostly spacious rooms are well-equipped and fair value (ask for a renovated room). Service is professional and facilities include a decent size men-only pool, sauna and gym.
The 6th-floor rooms will appeal to those with super-kitsch taste in style. There's also a lively Iranian restaurant in the basement with live music.