Should be a 5*, but they gave a bad room....
I always think a 5* hotel should not have a bad room, but they gave me one! 
I was not on a budget, but did not splurge either. This hotel is lovely and perfectly situated in Boston. It has everything you should want, except maybe a good nights sleep. Avoid room 520, next to a service door of some sort that bangs open and shut regularly in the evening, sometimes during the night and definitely in the early morning. In a hotel like this you want peace and tranquility - and this room is so beautifully appointed - but I would happily take a tiny hole that is quiet than one that you think will be perfect, but then disappoints where it matters most - Sleeping. 
The bed was perfect, the room amazing, the hotel - fab! The thin walls and door banging just outside the room, not so much! No hotel at this standard should offer a room that is poorly situated - it hurts the brand and the loyalty.