Well my experience has been real sh*t lately.. I haven't been able to watch a non buffering youtube video on 360p, listen to itunes radio or soundcloud for the last week or two. As if there is literally no throughput. Kinda a bummer on a business account. I'm not impressed.
Our JHB network is running very well, we're doing very little shaping so there is definitely good throughput on the network.
What diagnostics have you run?