I would be inclined to find another.
We had a lady in our area who set - up a long arm service.She had no experience in sewing or quilting and many quilts came back with holes or gathers. An experienced quilter would be able to tell if the quilt was square etc, and also not leave the machine unsupervised - at least in the early stages. She is not in business any more and that is how it should be with your lady if customers don't get what they pay for.