I can not say enough good things about the expierence I had in Boston at Kathe and Lisa's. Quick summary:
1) Booking - questions were answered quickly and on point
2) Pre arrival - great communication, on email and SMS. As soon as my plan landed I sent Kathe a message and she got right back to me. I headed over and met her to get the keys.
3) The apartment - nice, clean and quite. Basic kitchen, comfortable bed and fast wifi
4) Departure - got up early for my flight and let myself out with no problems
5) The neighborhood - awesome, hip and full of great energy, restaurants and bars.

Net net- highly recommend and look forward to visiting them again.