Expensive, certainly, but it was worth the money, as always! Implementation convenience, the D-Link services are impeccable (I did not need to speak to the media). Sturdiness, sealing and resistance to cold proven home (I live in Picardy). extremely configurable, image quality on top, also sensitivity top and night also. Obviously you have the ability to monitor in real time what is happening around you, thanks to the D-Link software, downloadable for Android and Apple, and configure alerts. Supplied with robust fasteners and anti theft. To install it, avoid Wifi, less reliable, as usual, and choose Ethernet. to avoid the worries of electrical connection, I recommend you complete a PoE switch you plug in your Ethernet router, it will allow both the Ethernet and power of your camera. Congratulations to D-Link, and a big thank you for the quality and performance of this product.