Product review (2 stars): Lasted a couple of months.
I was hesitant to drip into my granite countertops, so decided to give this product a try.  All started out fine, but one side started to loosen after a couple of months and then the other side gave way.  I figured that the dishwasher was out of balance so gave them a try again.  The second pair lasted shorter than the first.  I think that the steam that was released during the drying cycle somehow undermined the adhesive strips.

I switched to the E-Z Dishwasher bracket, which didn't really line up with any mounting points on my cabinets, so epoxied it on the underside of the granite and it has held up like a champ for over six months.