I had a thoroughly enjoyable stay at Boris and Susan's place during a trip to the Laver Cup in Boston. The room (and the apartment as a whole) was very clean, with ample notes to help explain how various things worked.
I also greatly appreciated the fast and responsive communication, even later in the day.
Although I didn't do anything else in the kitchen besides store some leftover food, I did appreciate the filtered water pitcher in the fridge. When traveling, sometimes basic comforts like that can be difficult to come by, and being able to pour a glass of cold water at the end of the day went a long way to help me feel at home.
Even though the event I had come for was in downtown Boston, I'm glad to have chosen to stay in East Boston. I was, admittedly, a bit hesitant at first, and although the general infrastructure of East Boston can look a bit run down, the community is fantastic! Even later in the evening, I never felt unsafe walking through the neighborhood. There are also plenty of great places to eat at (Angela's Cafe, Saigon Hut, and La Casa Del Pandebono all had great food, with La Casa Del Pandebono also having delicious desserts). Boris and Susan's place is also only a short walk away from the Maverick Blue Line station, which gets to downtown Boston in just a stop or two.
When returning to Boston, I would certainly consider staying at Boris and Susan's again.