This was our first experience and it was a great one! The apartment was clean, nicely furnished with plenty of hot water for four people. The location was awesome! We were able to walk to both Harvard and MIT as well as Whole Foods and many restaurants. We didn't move our car from the time we arrived until the time we left.
Erin was great -- friendly and welcoming. A couple of things weren't in the apartment that she had thought were there; and she quickly got them for us when I asked. She had great guides, maps available that told us about the surrounding area. The wifi was also a big bonus and very helpful. The TV was on an antenna, but we got the local/broadcast news, and didn't really have time for much more than that.
The electronic doorlocks worked well, although the outside door stuck a little bit. The beds were comfortable, the neighborhood was relatively quiet. We would definitely recommend this AirBnB property to anyone else going to Cambridge!