What do people who own this think about it? Is it worth the money?

If you are talking about the stainless pressure cases. I own three. They will keep your cards warp free on the hottest of days. If you do faro work, you will love them.

No the Pro-Card Case is a leather case with a belt clip and a snap closer, I have never seen one IRL and would like to know if they are good quality?

Is it the one sold by Joshua Jay? If so, I have one and use it all the time. You can carry a deck of cards, a small packet trick, some coins, a few rubber bands and a few business cards. It does have a belt hook but I prefer to carry it other ways (don't want to look too geekish).