I booked the Hilton in the Financial District for my mam and her friends last December. After trawling through hotel websites I found Trailfinders on Dawson St. had the best offer. I got 5 nights for €496 per room. The price was €124 per night with a free night if you stayed more than 3 nights. They also got upgraded to a suite when they arrived. They had a similar offer on the Sheraton in the Back Bay area for that time of year. They loved the hotel but the financial district can be quiet at the weekend. When I read up about it it said it was near the shops etc in downtown Boston but my mother etc never research anything and didn't bother exploring. They just jumped in a taxi and asked to be taken to Macy's etc.