Pros:Very easy to use! If your mobile phone (etc) can charge via a USB cable, just plug this into your car and plug you phone USB cable into the socket at the back and you can charge as you drive. The build quality is good and the unit is very neat. Just the right size! Any smaller and it would be hard to remove from the power socket, any bigger and it would be in the way. Bright red led shows you when it is getting power.

Cons:None! Perhaps the red power led is a little bright and may be distracting as you drive.

Bottomline:Cheap, good and easy to use. If you want to charge your mobile phone or other electronic device in your car and the device can charge from a USB cable, then get one of these. Why not get more than one! (Posted on 5/12/11)