I loved this delightful little garret (attic apartment.) Isabel, the manager, was extremely responsive and helpful.
During my stay, it was in the high 90s, and the little window air conditioner and ceiling fan worked great. The AC was sometimes noisy when running, but it was a tiny price to pay. Otherwise, the room was quiet.
The refrigerator was large and clean. There were only a few utensils, but enough for two. The television was the pride of the place! Not only is it huge, but Isabel subscribes to Netflix and Amazon. We watched free TV shows and movies easily.
You do have to climb two flights of stairs to get to the room. The second one is steep and a little narrow. Don't move the desk chair near it, or you might fall backwards down the steps.
The location near Central Square is excellent. It's a 20-minute walk to Harvard Square.

All in all, it was one of the nicest Airbnbs I've stayed in.