Its nice to get an electronic product that does what it says it does without any qualifications on specs. It can charge two ipads at once with full power to both. It can charge an ipad and an iphone and it knows what power to put to each usb. Took on a recent trip and used for everything no problems and charged stuff fast. I have a belkin surge with the usb’s http://www.amazon.com/Belkin-Surge-Outlet-Mount-Charger/dp/B0016IXEWG/ref=dp_cp_ob_e_title_2

and it takes freakin forever to charge an ipad. This can do it when fully drained to full in about five hours(give or take a little, it was vacation and there may have been alcohol involved), the belkin took overnight. The interesting thing is after my purchase the company contacted me to see how I like it and to give a review. Thats different a company that cares if you like the product and wants to know how it and you are doing.