It is a device which has all its interest to automatically distribute the load if there are several internet lines. However, this does not stack flows so if you have only 1 PC 2 line internet this device you no good. By cons, for a network of several PCs, it distributes the weight. Its setup is fairly sophisticated, but it is sufficient to activate the simplest functions and can thus be quickly operational. If you are a network administrator and want to block some ports is also possible. It has ample firewall for basic use and more than enough for this price category.