I've been pretty happy with WA, I tried a 2 week trial on MWeb, and I found it a very similar experience.
What's nice is that WA is quite transparent about how they think you're doing in terms of their AUP.
Here's how I'm doing at the moment
They say that if there is major congestion, they will throttle people starting from the 1* (red) side, being the biggest bandwidth hogs. I'm still pretty much in the green, even with 50GB this month. I think the PS+ and XBL Games with Gold nailed me a bit last week with downloads, but it'll probably drop back to 5* some time soon.