Fit:
Protrudes slightly from my lighter out, but definitely contributes significantly less than other USB adapter with a long "neck". Contact difficulties were previously not determine.
Function:
Although I do not use Apple product, but an S2, S2 shows the AC on for the charging mode and the phone is also loaded subjectively faster than the USB port. 2. A mobile phone is not a problem.
Conclusion:
Thumbs up! The whole could only fit in a little further into the lighter. Therefore, 5 points with very small deductions in the B note.
Edit: After nearly a year a good piece still works reliably.