We recently switched our phone and internet service from Qwest to Comcast and honestly, its working out better.
Now in all fairness, our phone lines sucked. This may not be the fault of Qwest, but it didn’t help their cause. We often had static on the phone line and occasional internet outages.
Now we have a nice juicy thick black coaixal cable feeding us phone, cable, and broadband. Up and down speeds seem to have increased. While the ‘modem’ they give you is pretty basic, our N-draft wireless router has everything I need.