I know this post is a few months old.
I have a download of 21.17 Mbps and upload of 3.42 Mbps with comcast as my provider. Yes, it is pretty fast. I found that some routers were slowing my speeds way down. If anyone feels their speed is slow then be sure to try a direct connect with out any router and do a speed test for free at Speakeasy - Speed Test
then do one again with the router. If you notice a difference then you have now found your problem, the router. I run the Cisco Linksys BEFSR41 Version 4.3, not a wireless one. I don't need wireless but I have one if I ever needed one.