My frame is by Ken Lund. He has sold a lot of them. In the picture I posted above it shows the wheels that came with it from the kit. But my dh ended up changing them to four coaster roller wheels. That way I was able to do swirls much easier. For under $200.00 I was glad to be able to see what it was all about. But in all honesty the space that was available to actually quilt in height wise at a time was not very much and I found I was rolling and unrolling the fabrics more than actually quilting.
When the mood hits I want to get my machine back out and give FMQ a try with it.
Here is Ken demonstrating his frame..
http://www.youtube.com/watch?v=F24UUQdBW5I