Comment Here is actual data. (Score 1) 345
I got sick of hearing AT&T tell me that everything was working fine, so I measured my actual DSL speed. Every 15 minutes. For more than a year. As you can guess, EVERY measurement was, as advertised, "up to 1.5 Mbps". Usually less than half that.
Results here: http://hacks.ayars.org/2012/05/for-past-several-years-weve-gotten-our.html