We absolutely loved our stay in this apartment. We never met Mikhail, but he was very responsive and helpful via email at all times. We also very much appreciated his flexibility with check-in and check-out times.
The apartment itself is lovely: comfortable, very clean and outfitted with almost everything one may need. In terms of location, while it's not too close to the main Boston sights, it's a few minutes walk from a T stop which can connect you to most places. The area itself felt safe and very accessible.
Overall, this was a great choice and I'd highly recommend it.