The device itself is well made. The cable has no length, but for me it was enough. I guess you can use it to jumper 60cm, no longer.
Unfortunately, the charger is limited to a maximum current of 0.5A. That's enough for my Lumia 920 in the standby charge, but not when it runs as Navi. In Navibetrieb it reaches a maximum for the trickle charge.
However, the device is indeed expressly gekenntzeichnet only for the Lumia 620, so I can not call it a real mistake. Since the Lumia 620 but can also be used as Navi, I doubt that it can load the phone during operation.
