There is a wonderful article about Henny Machlis on the Aish HaTorah homepage:
This is just so true. How many times have we been to the Machlises and wondered how they are able to deal with all those different kinds of people. From the Yeshiva Bochur to the homeless person screaming around. Who would ever be able to let such people into his house? At the Machlises, everybody is welcomed and I very much doubt whether there exist another place like this in the world.