This is a product that gives a good impression of quality and I am not disappointed with my purchase.
However, I give it 3 stars (and this is already good) are compared to user interface that is poorly thought and responding poorly.
To have a proper configuration (2 VLANs without lag on video) it took me well one week. Javoue not be very comfortable with network configurations, but the product still lacks documentation.
Nevertheless, once in place and configured, there is no longer any problem.