I have Comcast for tv and internet. The internet speeds are good and their servers and equipment have become more reliable over the years. The cable tv still sucks. You have to use their decoder boxes, they provide one HD box and one standard box, but any additional boxes mus be leased by the month. It's expensive and the rates go up every year and the increases are generally in excess of the rate of inflation. To top it off, there are frequent interruptions in the signal. I can't tell you how many times I have been watching a show or sporting event only to see the screen go black, then a message pops indicating that Comcast has detected a problem with the signal.
I still have Verizon for cell phone service and I used to have Verizon land line phone service, but I dumped the land line when the line outside of my house went dead for a week and Verizon refused to even give me an estimated date at which they could come out and find the problem. That's abysmal customer service and I know others that experienced the exact same thing.