When gaming or using VoIP you need minimal latency, if there is someone else using all your internet connections down/up speed it will skyrocket the latency (especially bittorrent). It would be great to add the following features to QoS for the WZR-HP-G300NH :
Download Quality of Service
Ability to prioritse devices or computers by MAC address.
Traffic shaper by MAC address.
Important controls to ensure quality of service.