Like all service providers it depends on when I'd say. The other night at about midnight EDT it was at 22mbps. I just tested it a minute ago at http://www.zdnet.com/broadband-speedtest/ and averaged 15 mbps download.
After installation I also had to re-load all W/8 updates due to corrupt files from several years of dial up downloads and doing a W/8 system refresh which I knew was coming before upgrading. Even the 2GB download went reasonably fast. It took far longer to install than the actual download. One download was 500MB it had it downloaded in 12-15 minutes or so. Oh and I am also using WIFI & not hard wire cable from unit which I can do either way.
I'm a new user on this as I was stuck on dial up since 1999 due to lack of any other choice. So in my experience it is thousands of times faster. I've used public WIFI many times and this is much faster. If someone is used to a system say that was fed by fiber optics they may say slow but to be honest other than having to do one reset of the modem since installation it's worked fine. It is also at at high elevation angle which in some cases helps clear ground obstructions better.
I am waiting for another hand to scribe onto the wall... Daniel 5
Psalm 110:6 NIV
He will judge the nations, heaping up the dead and crushing the rulers of the whole earth.