Aruba's virtual controller is the most important feature. I also have TP-Link, Huawei, and D-Link access points, and normally those solutions have a controller, which is a separate software or hardware used to control all of these. But Aruba's virtual controller basically sits in one of the access points, and if that particular access point goes down, the controller automatically migrates to the next available access point. With this feature, I firstly don't need any additional hardware for a controller. Secondly, I don't need maintenance for it. A virtual controller that roams around from one device to another automatically makes life very easy for me. My access points are nearly ten years old, so though they now have 2.4 and 5 GHz options, features like the captive portal for the guest Wi-Fi, avoiding sticky clients between two Aruba devices, reduced authentication, and the ability to look at the IDS are all still very advanced.
