I had no idea that each time they host someone via Airbnb it helps subsidize the cost of medical stays for families visiting Boston for treatment/surgery/etc. They work with a few local non-profits to provide the space to patients and families in need, so by booking with them you're helping a family who might not otherwise be able to afford the cost of the stay.
I work for a company that is huge with social justice causes and donate to non profits, I am thrilled to learn that Brian and Heather do the same for families in need.
If I have to book in Boston in the future, I will definitely stay here with my team again.