I highly recommend Misha's Coolidge Corner condo for your stay in Brookline. As advertised, it is spacious, clean and quiet. Since the condo's large windows overlook a lovely courtyard, there was no traffic noise. We also appreciated the excellent air-conditioning, having arrived during a heat spell. Having a parking space is a real bonus. It is an easy walk to local grocery stores, as well as to upscale shops and restaurants.
There are a couple of good options for coffee-making in the kitchen, and we got a kick out of the interesting light fixtures. The grounds of the complex are also well-maintained. We particularly enjoyed walking around Brookline and learning about the history of the area as the birthplace of JF Kennedy. We walked and used Uber to get around, but the green line is right up the street. Finally, Misha was very responsive to my questions. I hope that you enjoy your stay in Boston as much as we did.