If your machine is level with the surface around it, it does work. I quilt my lap size or baby quilts this way. I still start in the middle and worked across left to right on one section across the quilt. I then unrolled a little more and go across again and again until 1 half done. I then repeated the process for the other half. It does make it easier because the roll goes through the harp instead of having to be by the machine. Go For It!

This is how I have been quilting my quilts.

http://www.quiltingboard.com/t-52581-1.htm

The largest I have done this way was 106" square. I just scrunch half the quilt into the throat and start in the center, work my way to the edge, turn the quilt and work my way to the other edge. It is true that you still fill the throat of the machine up, but this way gives you more room for your right hand. It really works a lot better than with the machine facing you.

There are more pictures of the table I built later in the thread. Others have used the 1" thick foam insulation boards and cut them to fit around the machine and some have used plexiglass with some type of legs glued to the bottom.

Give it a try and let us know how you like it! Good luck!