Hence tonight when I got bored (didn't take long), I endeavored to find out. I've calculated my effective downstream to be something in the neighborhood of 1Mbps. That was using an ftp connection through a vpn tunnel (only big enough file I could easilly get at). I'm guessing when you strip off all the overhead that involved, we are probably getting something like 1.2Mbps down. upstream is about one tenth that, at something like 120Kbps.
Not too bad. I guess we're getting our money's worth.. particularly the way I use it, I'm going to make damned certain we get our money's worth. :)