So should "Quality of Service Packet Scheduler" be enabled or not?

One site my connection was faster with it enabled, another slower, which never proves anything anyway with traffic, etc. I regularly test 4.8 Mbps with advertised cable of 5. Theories please and thank you!

 

QoS wont do anything unless u use QoS aware apps, but i disable/remove it anyways. i certainly dont need it.

 

QoS can really help especially if you watch streaming TV or listen streaming radio.
I myself used to disable it, until I have found out, that TVs were lagging without it.
QoS will never use bandwith, if you need it, it just uses "wasted" bandwith to work.
Well it also prioritizes the primary tasks vs backround, but it is ussually a good thing.
By the way, I have also cable 1024, but my real speed is about 900, it is not due QoS.
In Vista, it is associated with Quality Windows Audio Video Experience service, that says it.