Park Plaza with Jet Blue Vacation Package
We just stayed one night at the Park Plaza in Boston through a Jet Blue Vacation Package. We could not have booked the flight and hotel separately and have gotten as good of a price. The location of the hotel is only 1 block from the Green T Line and only 1 block from a beautiful park. There are also several choices of restaurants in the immediate area. We have found that not to be the case in other Boston hotels that we have stayed in. 
I too read reviews about the hotel being past its prime, but the vacation package was too good to pass up. We ended up finding it very charming and cool. The hotel lobby is beautiful! The service at the registration desk was very good. Based upon other reviews, I asked for a high floor facing the street. Our room was on the 10th floor and we had nice city views. Based upon what I read online, I was practically expecting to be sleeping in a closet since there were lots of statements about the rooms being small. We were in a "standard" room and found ours to be an adequate size for 1 bed. The rooms have a cozy feel and have original hardware on the doors. The door to our room has a door within the door for valet/laundry service. We found this quite unique and were intrigued by it! Some past reviewers complained about the street noise, we just laughed about that because....well you are in a city! Yes, we did hear some traffic but is was not a problem for us. Regarding the walls being thin, at one point we did hear someone next door snoring loud enough that we could hear him but it was only temporary. If it had continued, we would have left the TV on low for some white noise. Even with this issue, we would still stay here again in the future. The bed was very comfortable, the bathroom and room was clean and you can't beat the easy access to the Arlington T Subway Stop when you are visiting the city without a car! We took the subway right from the airport to the hotel with two easy train switches...Blue to Red to Green! All other cities should have subway access from the airport!
We ate at M.J. O’Connor’s Irish Pub for dinner and the food was delicious! It is located on the first floor of the hotel but you access it by going outside and down the street. We also ate breakfast at Au Bon Pain. A little take out place located on the first floor of the hotel. Again you access it by going outside and down the street.
For those who want to go shopping there are also high end boutiques nearby. The park is lovely and offers boat rides in swan shaped boats in the summer.
It is an old school hotel, the lobby is grand but if you are looking for marble sinks and extra large standard rooms this is not the place for you. When comparing prices with other hotels keep this in mind. Our vacation package with our flight made us consider it and we would definitely stay here again (even if we booked the hotel room and flight separately).