I bought a Viking Inspira Quilting Frame a couple years ago. I have not been happy with it. You start out with about 8 to 9 inches you can quilt. Then comes the problem. With each wind, you have less area that can be quilted. The space between the needle & the machine limits you. Once you get toward the end of the quilt, you have so much of the quilt wound up there isn't much quilting room. Your pattern could only be 4 or 5 inches deep (if that).
Also you have to consider where you will set it up. You need at least 14 feet long to set it up & then another 3-6 feet is nice to be able to move around it. That is if you want to do more than just a small quilt