One nice thing about some MassHousing loans is that they come with PMI+, which is their own program which will cover your mortgage payment for up to 6 months if you lose you job. Obviously nobody wants to pay PMI...but if you have to then this is a nice feature of the program.

Another nice feature is that MassHousing will always be the servicer of your loan, even if they sell the loan on. So you will always be paying MassHousing, and you'll always be able to call them for assistance, which is a nice benefit given some of the stories I've seen about some for-profit loan servicers.