For online games and other real-time applications this stick is very well suited. I use it in combination with the Fitz Box 7390, between which about 8 meters and a wall lying. For the connection I use the 5GHz band. In one test, with no additional downloads, I have the router pinged directly:
Ping statistics for 192.168.178.1: Packets: Sent = 2213 Received = 2213 Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 1ms, Maximum = 7ms, Average = 1ms
There are almost never displayed values over 3ms.