I agree that it takes a lot of practice, one article I read said 20 minutes every day for 4 to 6 weeks. I am very sure that there are folks who were successful on their first attempt, but for the rest of us, I think the estimate is valid. I think part of it for me was figuring out the best way (for me) to work with a large quilt. I didn't like it rolled, I liked it puddled.