I know what you are talking about. I just finished a Double Wedding Ring and it was the hardest quilt top that I have ever done. It was a class, and I had lots of help, but that didn't make it easier. The problem came when it was time to put the rows together. I fussed with it for a whole weekend, and finally got it together. Let me just say my seam ripper got quite a workout. The only thing I learned from the whole experience is if a class is scheduled for six sessions, you can bet it's going to be a difficult pattern!!!
Sue