Depending on your situation, that product might make sense for you. I don't have experience with it, but from reading some of the Amazon customer reviews, it seems like a bad match if you are either a heavier rider or are primarily interested in speed/performance. If you are a casual rider, or a commuter who values iron-clad dependability over performance, it might make some sense.

I've changed a few flats, and even with the correct tools and a spare tube at hand, it still takes me some time and is not something I look forward to. I use Kenda tires with kevlar flat-protection, which helps prevent punctures (I haven't had any in 500 miles), but makes it harder to change the tire when you get one due to the stiffness of the tire itself (it can still be done, it's just not as easy as I hear from others here and see in the youtube tire change how-to videos). I've had one pinch-flat due to hitting a sharp rock (which didn't puncture the tire, but pinched the tube hard enough to rupture it) and two flats almost simultaneously soon after I got the bike due to crappy rim tape installed by the manufacturer. It is good to know how to change a flat and to have a flat repair kit with spare tube, hand pump, tire levers, and any wrenches you need to get fenders or wheels off with you.

If you do decide to go with them, please consider posting your review of how they work for you, I would find that interesting. Thanks!