I did lot of research before buying this. Not many reviews about this product on cnet, youtube hence was not very sure about performance. I have been using it for the last three weeks and I personally find it very good. Performance Details 1. Charging time – It takes ~ 8 hours (0 - 100 %) using 1 AMP mobile charger. You can connect phone to one of the outlets while charging this pack and both of them get charged together. 2. Discharging - Retains power for a very long time. (When I opened the pack, it had 75 % power. I believe the product was manufactured 5 months back or so.) 3. Actual results - Once fully charged. a. Samsung Galaxy grand - I can charge it approximately 4 times. b. ipad mini - I didn’t charge it end to end. 40 % charged within 80 mins and then two led went off. I think it can charge it once completely. Pros: a. light and very small (something like the WD portable hard disk) b. 1 & 2 am power outlet. c. Comes with a micro usb cable. d. Finish is good. e. Looks reliable. (Have been using it for the last 3 weeks.) f. Automatic power off – If you plug out your mobile then it will turn off after 2 – 3 mins. Cons: a. Did not find anything till now. Thanks, Santosh