Aesthetically, the product is successful: a nice design, a small footprint, and the materials seem of good quality for a robust set. Installation is very simple: connect the Ethernet cable through the router to the modem, plug, and voila! Then, to use strictly speaking, do not rely on paper user manual, very brief: you must connect to the manufacturer's website to download the complete guide ... Finally, concerning storage: 2 hard drives of 2TB each! And thanks to downloadable applications for free, you can use this "data safe" distance from its smartphone or laptop! In short, a great product!