Mikhail is an excellent host with quick responses and a clear desire to help out the guest.
The apartment is very clean and exactly as described and represented in the photos. It's in a larger condo-complex but fairly quiet inside. It is within walking distance of the center of Allston and all of Commonwealth Ave West of the BU bridge. I even walked to Back Bay/Newbury Street one day (~3mi). The apartment is 0.3mi from Whole Foods (I went often), and on the edge of Allston and Brookline, so you're also less than a mile from Beacon Street/Washington Square, with more shops/restaurants and that Brookline charm. I loved running in Brookline with it's parks, more greenery, and quieter roads.
The apartment is also extremely close to several Green Line T stops, if you're a fan of that method of transportation.
I stayed at the apartment for a month and thus had time to run into a few difficulties along the way which required Mikhail's help. We worked through these all well and he was very understanding and accommodating.
Overall, it's a clean and quiet (for the area of Boston it's in) apartment with a great host.