So first the positive, it's really smaller than a coffee coaster. ;) Unfortunately, the charge does not always work, the charger is blinking blue as in the charge, but unfortunately the overhead device is not loaded. With my Lumia 930 that happens very often, with my Nexus 7 happens rarely. Compared to this product cuts far worse, especially since it includes no power supply, and at least 1.5 A power adapter is required to work at all.