as much as I (everybody) complains about TWC, I've always had ok service when people come out to the help. Two instances that I can recall: first, guy noticed I had an old internet modem thing (he was there to fix a cable box, not a modem), and he went out to the truck and did a full replace and setup, and then re-did all the wires from outside to get me faster service. Second, when I moved to W'Burg, the cable connection next to the TV was shot, so they neatly wound a wire from the cable connection at the other side of the room - i expected them to just leave a cord running along the floor next to the wall baseboard, but they set it up nicely. Low expectations were exceeded both times.
of course, I'm still getting a bill for service that I cancelled in July, but that's a whole different matter.
For Comcast, we once had a group of technicians over to fix the internet, and after careful consideration, that group declared that it's the 5 computers in the house that are broken (and, coincidentally, all broke at the exact same time), and not their internet service. Then they left.