Here in Easley, I'm supposed to be getting 30 down and 4 up but have a look at this »speedtest.net/result/2551444676. ··· 4676.png
51 down and I don't even really know why. They sent me a SB6121 a couple weeks ago because my SB5101 was too out of date (apparently), but that can't be all of it, I wouldn't think (especially since it tested at 30 down when I first installed the new modem).
A new tier or an upgrade to the Plus tier, maybe? I'm not paying any more than I did before...
In any case, no speed issues here.