I would recommend Minga & Jonathan's place. No frills bedroom but convenient enough for what you are paying. Minga was a great host, the bedroom is as described (queen bed) and the bathroom is just outside the door from the bedroom. A shared kitchen space is available with a small size fridge. The house is located in a quiet neighbhorhood and conveniently located within walking distance from the Central Square Train Station. You won't need a car to move around.