The products are great! I've used their shields on my Nokias, iPhones, iPods, Macbook Pro, and Macbook Air. Excellent scratch protection without comprimising usability. The lifetime guarantee is great and shows how much they stand behind their product. I'm also the happy owner of their Smartbuds... the best in-ear headphones I've owned to date! The durability and sound quality are second to none within their price category. Of great added value to me, is the international shipping option. I live and work abroad, so I often have problems purchasing items that are commonly available in the US.