Another great, in depth review, thanks for your hard work HKJ! Based on this, I ordered this charger today, so I look forward to seeing how it performs.
I've had my C9000 for several years now, but this charger brings some new more modern features to the table. I also have an iCharger hobby charger with PC connectivity, but it's much simpler having the 4 cylindrical cell holders built into the charger unit, and the bluetooth chip/iPhone app mean I don't have to have a cable plugged into my laptop all the time. It would be good if the bluetooth could connect to a laptop too, to interact with the PC software, rather than having to use the USB cable. I'm not sure if that is possible, or if the bluetooth can only talk to an android/iOS device...
But one good thing about this charger is that extra functionality can be added, and bugs squashed, by means of firmware updates.