The Dock know a very good quality and has consistently dibasic. The Nexus 7 is easy and safe place in the dock. Compared to the Galaxy Nexus Dock from Samsung this goes here even easier. One can clearly see that this is third-party accessory manufacturers to original equipment and not a cheap China. As far as I can tell, the Nexus 7 is fully charged in the usual time. Every now and then the Nexus 7 recognizes the dock not immediately but that is more of a problem and Android also occurs in other docks / mobiles.
