Got mine a couple days ago. Charged overnight as they suggest. Worked just fine except for one issue, it will not charge if the iPhone is in the case. Have been emailing back and forth with their support. Although I am guessing English is not their first language they have been helpful.
I believe they are sending me a replacement, I only hope I receive it before I go out of country next week.
Just curious, has anyone else been able to charge the case with the phone in the case? On mine the case just sits at 1 light and never charges. Tried with the phone on and fully off, no difference.