They're forcing us to buy uverse service
That could be why my dsl service from Louisiana AT&T has gradually become rotten over the last year. It's speed measures the specified number of near 6 mb/sec., but the download of web pages is increasingly slow, and NetFlix streams that start out OK or poor often degrade to even worse over time.
I've been testing my dsl connection for latency, packet loss, and (I think) latency jitter with SmokePing, available here. I get some pretty ugly graphs from noon to around 9pm every day.
If anyone out there cares to comment on what SmokePing actually measures, I would be grateful. I've yet to see a clear explanation of SmokePing provided by this site (Or findable with a Google search, even!)