I hooked up my century link today on a free 30 day trial and i'm impressed. I previously had comcast 50m which for the first year they snuck 100m in on me. I was hesitant to switch to dsl because depending on your distance from the nearest node you can have latency issues (I game alot). Also dsl has a tendancy to slow down at peak hours.
Seeing as this is the first day I've had it, I can't give a complete review. But my download speeds are good and latency is good. In this neighborhood we apparently have fiber ran to us and they call it a dedicated connection so it's not supposed to drop speeds.
So far I highly recommend it, half the price and no draw backs over comcast.
(also centurylink is a better company, they easily renew intro prices every year and don't try to sign you up for more services in the process)