I use my home machine. It's a Juki "quilting machine" but it's really no different than a regular sewing machine except for the slightly larger throat area which allows for quilting a larger quilt. I used to use my moms old Necchi (which has a rather small throat area, so it was a bit harder to get all that bulk in there but I managed somehow) and I even use my old Singer 301 on occasion because it's lighter and can be taken to classes, etc.
I wish I had a long arm machine. I see one in my future. Hope God does too!! :D :D :D