For what it's worth, I've been on a 4Mb Premium for quite some time. My line is with Telkom - also 4Mb. I recently went through an upgrade at the Telkom exchange where the max available speed was upgraded to 10Mb from 4Mb. There was an instant improvement on both the ping and the speed. When I had a "good" connection on the old exchange, I used to get a ping ranging from 18ms to 49ms and speed about 3.5Mb (using Ookla to test). After the Telkom upgrade my results were ping 9ms and speed about 4.7Mb. (has ranged from 3.8 to 5.0Mb)
I thought now would be a good time to upgrade my service from MWeb from 4Mb Premium to 10Mb Standard just to try things out, as it is almost the same price (R60 more).
The first thing that I noticed was.......... nothing. Same speed and ping! My guess is that Telkom is limiting my speed to 4Mb. So, okay, I need to upgrade that sometime.
The second, and most interesting thing which I noticed is that there is a now lot of buffering when trying Netflix/Hulu. So much so that it's not watchable. This is at a time when Ookla is showing a 8ms/4.7Mb connection. My guess is that there is a LOT more shaping that goes on with the "Standard" package. I think that I'd be better off rolling back to the 4Mb Premium package.