I have been using the dock for a couple of weeks. have run into an occasional problem where the phone will display accessory not supported and the phone will stop charging. Contacted Mophie and they are going to replace.
Got mine. The dock and cable are very high quality. I would have to say this is worth a definite look if you are about to purchase any Mophie case. The packages at Apple are $109 and $149 for the Helium and Plus. I was able to use my corporate discount and get it a little cheaper.