I'm sure it's a very good product. I ordered it for my daughter to carry around with her to charge her phone on the go. Unfortunately, it is way too heavy to carry in a small purse. So I returned it. It is probably very good though. I think it was a little more than I expected.
I very impressed with how long the juicyPACK holds it's charge. I used it after it sat for two weeks. And I like the fact that I can use it as a flashlight. I never gave that a thought when I bought the charger/
This thing is a beast. I charged my tablet from 50 - 80 % and the JuicyPack lost maybe 5% of its stored charge. It's the perfect travel companion. I haven't recharged it since then (maybe three weeks ago), the JP still has 45% charge, down from the 50% charge it had then.