It worked well, punching easily through cardstock. I really like that they have labeled the side of the punch with a picture of what it looks like. The photo below shows it in a locked position which is flat and smaller than when it is opened. The little turquoise button on the bottom is the lock.
I noticed that there is even a divided plastic storage case for the regular punches. Maybe they will come out with one for the border punches as well. I think this is a great new idea and especially like that they are so much easier to store than the older punches. Now I'm just wondering how I can justify purchasing these when I have drawers full of the other ones!