We recently connected to the NBN at home which was a sizeable increase in Mbps. We live in a large house with the router situated very far from my computer. Our existing set up with powerline adapters was throttling our new speed so I purchased the Nighthawk AC1900 WiFi USB Adapter. It's been excellent. Speeds are hitting our possible maximum and I couldn't be happier. Would recommend!
Above expectations. Before i purchased the NighthawkI had severe lag issues because the modem was on the other side of the house. This turned my CSGO lag from constant 30 - 40 ping down to as low as 7 ping. The signal is going indirectly through 3 gyrock walls and travelling at least 12 meters from modem to my computer.