When I opened this wireless charger I fully expected it to not work. It is very light and my experience with electronics is the heavier the better. However, I was extremely surprised. All I had to do was plug it in and set my phone on top and BOOM...it was charging. I'm not going to say it is the fastest charge there it, but if I'm just sitting at my desk at work and put my phone on the charger when I'm not using it, or leave it on the charger while I nap/sleep...then I normally keep a full battery or have one when I get up. I'm my battery is already dead and I'm looking for a quick charge, then I'm going to use the cord that came with my phone.
I gave this 5 stars because it is portable and lightweight. You can throw it in any size bag and use it like I do when I have some downtime. It has also come in handy when I forgot my actual charger or when a non-Apple using friend needed to charge their phone at my house. I really like that it is universal like that. There are also little rubber pads to keep it and the phone from sliding around. All in all, a good purchase. I will keep you updated as to how long the product lasts for or if I see any decrease in the amount of time it takes to charge. Right now, I can stream music or a movie and the charger keeps the batter pretty much where it is. If I start to lose battery while chargeing and streaming I'll let you know.