I have it and get between 18-20meg on it
one thing i would advise is make sure you tweak your TCP/IP settings as the standard settings in Windows is not really set up for those speeds.
One program i would recommend for this is from iobit (just google it)
they are currently beta testing the advanced windows care and it rocks.
you can tweak your setting in there by just adjusting the bar to say what speed you have.
I also work for VM shhEdit:
also forgot use
http://www.speedtest.net as it gives the best speed test results