Benefits:
- It fits into standard cup holders, and it has about 0.5 m long power cable.
- When not in use, cables can be folded inward, so that you leave it in the door, etc., there are no wires hanging out.
- USB port (800mA) works without switching on (as long as 12V is connected)
- Both US and Euro sockets can be used without an adapter
Disadvantages:
- During the first few hours device sends a bit bad smell, but despite 5 stars.
I highly recommend it.