Incredible sleaze
The best polite word I can use to describe Comcast is sleaze. I live in a neighborhood where Comcast is the only provider.
I am on the 400Mbps tier, paying $90 a month. It was 100Mbps, but they upgraded the speed for free. Unfortunately, I still get the same speeds as when I had the 100Mbps tier, 40-50Mbps. Online support was useless, telling me the problem was with my equipment. The chat replies were every 15-20 mins, so 4 hours of my time was wasted.
They advertised new nationwide pricing, so I went to look at what they had to offer. Five screens later, it tells me they say they can't show me my prices on the internet and I had to call to get "my special prices". Everything above board and transparent with that!
If you have a choice, even if it's Joe's Internet, avoid Comcast at all costs.