Had a fantastic stay at the FS Bos last year.
We were upgraded to a Jr Suite, and found the views quite nice -- certainly not the (I'm imagining) stunning views from a full-on palace room, but still very enjoyable.
I found the property in general extremely lovely, fantastic spa, and the perfect bit of tranquility to return to after exploring the city. I could not more highly recommend it ... one of my more favorite stays in the past few years.