Myself and two others were attending a convention at the BCEC nearby and found TJ's place to be close enough for our needs. TJ's home is functional and beautiful with anything you may need to have a great stay. TJ himself is accessible to answer any questions you may have and extremely accommodating and knowledgeable. For example, I was worried about the parking situation nearby but TJ advised me how to park free without much risk, saving me tons of money and headaches.
His living area is nice for having a stay-in meal (whether self-cooked or take-out), he has TVs in both the main room and bedroom with as many channels as you need, and he graciously allowed us use of any toiletries we may have forgotten. If you want the comfort and ease of a hotel while still having the feeling of home, TJ's is the place to go in South Boston.