Glenn has a very nice airbnb located in the heart of the South End. I did a rotation at Boston Medical Center for a month. By bike, the unit was 5 minutes and approximately 10 minutes walking. It was very convenient for working at BMC and would definitely recommend.
My favorite part about this airbnb is the location. You have plenty of restaurants within walking distance. El Centro is a great place for tacos very close by and Flour Bakery is great for lunch also close by (less than 10 minute walk). Close to Back Bay Station for the T, where you can get basically anywhere in Boston easily.
Master bed is comfortable. The location is pretty quiet, so nice to sleep in the evening. The pull out bed from the couch in the front room is not very comfortable. I would recommend it for a kid but not for an adult. Washer/dryer unit is in the basement- Easy to use. Lots of kitchen supplies. Glenn is a great host- very responsive and easy to communicate with.