We had a great stay! There is a park about a 1min walk from the front door which was fantastic for us, especially since we traveled with 2 young children. There is a bus stop about a block away (93) but be aware that it does stop running thru the residential area at a certain time, so after 5p it drops you off further away, about 5 blocks. However, we mainly used the ferry and that dropped you off right next to the aquarium and a T station.
Elly was an amazing host, she was attentive and responded to all of our questions quickly, prior to booking. When she realized that I was bringing an infant she offered to place a crib in the apartment without me asking. Also, you are not far from the USS Constitution, you can see it as you are waiting for the ferry, there is a brewery close to the ferry as well. 7-11 and Dunkin Donuts not far either. We really felt like we were part of the city with out being in the middle of it.