Seriously, this thing is awesome. I have used it dozens of times since purchasing it a month ago and it's helped me out multiple times. It always adds the usual 40% to my phone and has a convenient light display to tell you how much juice is left in it. It charges quickly (and holds its charge when not in use) and is seriously the most convenient thing ever. I also loved the design I got - mine is the pictured one; black with pink flowers. I just wish Triple C would hurry up and make one of these for iPhone 5 when I upgrade!