The Punch Board does exactly what it is designed for. I love the fact that everything is right on the board and I don't have to go looking for the size charts. If you are a cm user instead of inches, there is an adhesive overlay that can be applied to the board.
Making the scoring lines takes a little practice. Because you can't really feel it with your fingers, you have to learn exactly where to begin scoring at the top. Also, don't press too hard with the scoring bone if using thin paper because it would be fairly easy to cut it.
I am looking forward to making many envelopes that actually fit my cards and also on scrapbook layouts. The possibilities are endless!