We had an excellent stay with Jonathan, who was helpful, polite and accomodating. He allowed us to leave our luggage up at the main house whilst when we checked out but before our flight. We arrived quite late into Boston but arrangements were such that it was easy to gain access to the studio, even though Jonathan was not in at the time. The studio itself was exactly as described - clean, functional and comfortable. Just what two weary travellers needed! Would recommend to friends and if we visit again will definitely consider staying with Jonathan again.
A tip - the route from the nearest subway station to the studio has a reasonably steep uphill part so recommend an uber / taxi as we had a little trouble hauling two suitcases up the cobbled steps at midnight!