It's been ridiculous. I am in the process of leaving AT&T. I have tested my data speed everyday for three months. At beginning of the month, I get around 15-25 Mbps, but by the 17th of the month I am 0.2-0.35 Mbps. It takes a single photo on Facebook 8-15 seconds to load. It's outrageous. Another cell provider has promised me a much better rate and the first 6 months free if I'm willing to speak against AT&T. I wouldn't mind if I were getting 5 Mbps but at this speed, I can't do anything with work or stay productive. AT&T has really gone downhill.
Remember, to file a complaint with BOTH the FCC and the FTC. They are suing AT&T and I have contacted the teams leading the suit to join them to make sure AT&T stops this and reimburses us.