I had some problems with making Craig's Apron. For the life of me, I couldn't turn the tubes to make the ties for the waist. I finally gave up and made flat ties by turning in the raw edges and sewing on the outside.
Nancy's Notions carries these handy tube turners called Fasturn but they are $27 a pop. Is it worth it? I'd have paid that amount one evening in my frustration working on the apron tubes.
Here's hoping some sewing gadget lover like myself can offer an opinion.