Can't give you much about the program, but the cost of living in Boston is VERY high and housing is difficult to find. That said, I love Boston, I just could not afford to live there. I used to live an hour and twenty min drive from the city, but I did not want to commute that far for school and could not afford to move closer to the city. Boston has some of the worst traffic I have ever seen!
The anesthesia school has a good reputation, but I can't comment from personal experience. As for the residency thing, I think many schools
that have both a MD residency and Nurse Anesthesia program, give a higher priority to the residents. This may not always be the case, but I have seen it happen before. Personally, I purposely chose a school with no competition from residents. Good luck.