I have finally cancelled my subscription. After the first issue, I sent them a long list of errors and did get a response thanking me. When the file of corrections for the first two issues came out, I noted tht most of my suggested corrections were not included. There were apparently many incorrect measurements. Just before the third issue arrived, I decided I would stick with their tutorials and stay away from publications that were likely to be filled with errors. Too bad--I like the company and the tutorials, as well as the patterns they create.