I saw a demo of this product at my LQS and was amazed at the flat seams. After the seam was pressed a pen with this solution was used to run down the seam and pressed again and it was like there wasn't a seam in it at all. It was flat as a piece of paper. The precision glue by Acorn does not penetrate the fabric. They are making it too easy for us. LOL
https://www.youtube.com/watch?v=MS1dN7kVEDc