Mark is a wonderful host and his apartment could not be better positioned. I spent a very comfortable 25 days there, enjoying easy proximity of Boston Common, Downtown, shops, laundrette and T stations. Like with so many ground floor apartments in historic Beacon Hill, this one is at the back of a narrow alley and closely flanked by other buildings, which does mean it does not benefit from direct daylight, with barely any sky visible, let alone views and so artificial lighting is needed at all times, though this may improve further into the summer months. For a long term stay this may be restricting but the beauty of the Beacon Hill neighbourhood does compensate. The apartment is warm and cosy and the bed very comfortable. Excellent shower and well equipped kitchen. I do recommend.