It's a lovely quilt. And the puckers aren't very obvious from the picture.
If ALL of you had problems, I think it might be the pattern.
I've tried making the pieces in paper and laying them together to see if they fit together properly. I had a dresden plate pattern that ended up being about 370 degrees - didn't lay well at all.
Sometimes the templates are off. Just because it was purchased, doesn't mean it's perfect.