Yes, I have. As long as the machine is big enough. My "little" top loader at home is way too small. I took our goose down comforter (queen size) to a local laundry mat with a front loader. Put it in, put the coins in, pressed start, and said a prayer! After it was done, put it in the dryer with some tennis shoes (clean). More coins. It came out perfect. You put in the tennies to "punch" the goose down clumps. BUT, if you have any small tears, holes, etc. then you need to fix those first otherwise they will just get bigger!
Good Luck - cathy