Marriott Bit expensive as things stand though looks like a lovely property

But Sheraton with the code I was given is a fantastic deal... are the rooms spacious, does anyone know? And also, tripadvisor gives it some bad... (rundown, dirty etc) ..any truth in this?

Friends, its my wifes birthday we are going to BA for Its her first time... Ive been 4 times, am completely in love with the city and I want her to share this... so I do want to make sure we have 5 nights in a nice place...shed rather get a furnished apartment and be done with it (and I must say there seem to be some really cool ones on BA habitat)

but Im the hotel type so i better get this right or Ill never hear the last of it (unless you folks think she is indeed right... do tell ... thanks...