The store works perfectly of course. The simultaneously synchronizing with the computer works also wonderful. My HTC Desire is firmly seated in the shaft and wobbles not be. One can use this even. If you want to remove the phone from the station, however, you need both hands, which does not bother me if doing otherwise a firm grip is guaranteed.
The charging function for the second battery I can not test unfortunately because I have only one. But I'm assuming that this will work without problems.
The price is great too and were even included in the scope of two USB cables is the icing on the cake. If there is one thing that I must hold against then the USB cables are quite short (1 meter). But that's really critical at a high level, especially since you can create extension without any problems from the world this shortcoming with a USB.
All in all a pointed instrument, which I would recommend to anyone wanting a HTC Desire has!