how did you upgrade your notebooks ? Did you inset pci express card ac capable ?I bought two ASUS RT-AC68U routers and upgraded all my notebooks to 802.11ac. I absolutely recommend them. WiFi reaches all areas of my three story 3000sqf house. Many areas have 200mbps+ throughput, adjoining rooms get 800mbps connect (max client connect speed). Has been rock solid. I too stream Blu-Ray ISOs from my NAS without stutter or other issues. Apparently there's experimental support for USB 3.0 hubs. At some time I'll try hooking up my DAS devices (three 4-bay USB enclosures) to the router. In theory, I might be able to eliminate the NAS.