In the ACSI Comcast's Internet service gets a score of 62 - the lowest of any ISP measured.[1] The IRS gets a 75 for individual e-filers and a 64 for self-employed and small business filers (scores are lower for big business and paper filers)[2].
[1]http://www.theacsi.org/index.php?option=com_content&view=art... [2]http://www.theacsi.org/index.php?option=com_content&view=art...
Oh, and this is after spending at least a total of 5 hours (I had to call them 7 times. Yes, I was counting!) with their customer service over the past few months trying to get them to mark my newly purchased modem from Amazon as my own modem, and stop charging me a modem lease fee.
If there was even a single competitor that could provide me even decent internet service, I'd switch to them today!