Question

Free motion quilting is still an area in which I am trying to improve. I have prepared some quilt sandwiches for practice, and I am also FMQ-ing some small projects. I continue to study different online tutorials. On a few of these tutorials, a free motion quilt slider was recommended. I do not think that this is something that is worth my purchasing, since I do not see myself ever quilting a big quilt on my own any time soon.
However, I was wondering if this product really works. Do any of you find it useful or as a must-have?
Thanks for your input.