At first I didn't like how long it took to charge the device...but after being able to charge my Galaxy Note 4 from under 10% to fully charged quickly and 3 times before recharging, it totally makes the 12-15 hour charge time worth it!

It Works just one time with a sansung S4 then never again.-I'm really disappointed!

The small time it did work was nice.

I've dropped it a few times and it still works without any problems!

I was able to charge my iPhone 5 a solid four full times after it came in the mail, before I plugged it into the wall for the first time

Slightly heavy but still small-will not die before charging phone 4 times

Well built, easy to use, lasts a long time between charges.