Since switching to Cox from CenturyLink our internet has more than doubled in strength and all for $12 extra per month. We switched in Fall '16 and won't go back. The upload rate between Cox and CenturyLink are honestly incomparable. Cox is superior, hands down.
I gave 4/5 stars because there are occasions when our download rate will get pretty weak. If this small inconvenience was not there then Cox would deserve 5/5 stars!