Originally Posted by lincoln_husker
nope, probably better off with them.
I think so as well. I have been testing DNS servers for many years now (ever since Comcast High Speed Internet was introduced here anyway), and I find theirs (Googles), although I admit not always fastest, seems to provide me, either due to location or hardware type, a smoother internet experience over all. However, with that said I could NOT get their IPv6 DNS server to work, nor the ISP's but during testing found that OpenDNS had 100% non failing DNS servers for IPv6. So my setup is currently Google for IPv4 and OpenDNS for IPv6. Its been at least since last summer that I spent time testing DNS so things may or may not have changed for me. YMMV
P.S. I do not have Comcast HSI, because I now live just outside their grasp. I am forced to have CenturyLink and currently subscribed to 40/5 and the modem syncs at 50/5. Speed tests always give me 47/5, but we know how that is... However, living in a rural area with very poor and all retired neighbors, I have to think that must be why my Internet seems to work reliably most of the time. In fact, when I drive up and down our dirt road, all I can find is a few weak G signals, and when I mean few, I mean few like 1 or 2 within a several mile radius, lol. Which leads me to believe that no one has upgraded to the new VDSL2 that we have had since mid 2013. Man I hope it stays like this haha.