I stayed at Yudong's place for 3.5 months. The place was everything I needed at then some. The room was very clean and the bathrooms were also kept very tidy. The noise levels were reasonable and all the other guests I encountered in the building during my stay were courteous; there were no issues sharing the common spaces.
The place is a short walking distance from multiple main transportation lines. MIT is a 15 minute walk away, Harvard a 20 minute train ride, and depending where in Boston you are heading, it can be as short as a 15 minute train ride.
Yudong was very quick to respond to all of my messages and was accommodating when I made requests such as asking to have an extra guest for a few days and when I extended my stay.
There is no kitchen. But there is a personal fridge in the room as well as a shared microwave and water dispenser. It's a simple place, but 100% meets all the necessities.