I have bought and installed the NVR IE 92 recently. It is a well-built solution, the package contains everything you might need, including four Ethernet cables for the cameras. The system is really plug-n-play and in no time you are live with your cameras. The NVR setup is equally straightforward and it has enough parameters to play with.
Now, coming to the things I am not 100% convinced of:
1) The NVR allows for 8 cameras in total but those supplied with the NVR cannot be bought separately. This is not an issue as any ONVIF camera works with this NVR;
2) The cameras have very little settings to play with as the entire logic is hosted in the NVR. In short, there is little room for single camera customization;
3) The NVR does not seems reachable directly and therefore a TV need to be connected on the HDMI port for administration. This is inconvenient when the NVR is placed in rooms without a TV. I am not sure whether it has a webservice (e.g. on port 80) reachable from within the same LAN.
5) The quality of the image is good, although it seems to have a better definition in IR mode during night whilst during the day the colors are a bit too vivid (especially green) and tend to melt.

That said it is a product I recommend.
Stefano

cameras that offer excellent security in video surveillance quality. Excellent quality at night and even better during the day. I am really satisfied and happy with the purchase I made. The AI ​​provided is very reliable.

Fast delivery,great product,very easy to set up

Alot of features at a fair price.

Me gustó mucho, más todas sus funciones, como girar, tener audio,msj Cuendo ve movimiento etc .. muy buena me funciona perfectamente y si !! Volvería a invertir mi dinero en ellas.