I'm considering getting a quilt frame for my mom, but I'm wondering if any of you have them, if and what you like about them, are they sturdy, built well, etc? She used to have one several years ago, but it was not sturdy and I think was falling apart. I'm also looking for one that wouldn't take up too much space, because space is limited in our house, or do frames usually come in one size? I'm not very knowledgeable on the subject and would appreciate some input. Thanks!