A great location about 2 minutes walk from the B line. Clean and spacious, with an easy check-in process.
If you are staying here and coming straight from the airport, I would suggest getting off at Kenmore to buy a T card before taking the B line up to Sutherland station for a short walk to the Airbnb location.
Simon was very responsive, and also has a shisha business around Harvard Avenue station if you're into that type of thing.
As someone who went to Boston University and stayed around Allston, this was an affordable and convenient option. Will be back again when I visit Boston in the future!