Time Warner Cable in Texas was reasonably good to me although they had some really irritating fees they charged when I moved and wanted to keep just the phone service for my alarm. I am currently using Cox in Las Vegas and the service is ok, the price is average, but they have some irritating network policies. They block port 25 so if you use any other email service, you have to use an alternate port. Not a big deal since it is trivially bypassed for anyone with any tech knowledge, but it is infuriating that this bogus security measure is even used in the first place. A tech savvy person will bypass it trivially, so it only hurts people who don't know much about networking. They block a whole slew of ports in the name of keeping their network from being used to transfer abusive network traffic but that's just nonsense since tunneling and using alternate ports still works.
Also, they have a bandwidth cap. I don't know how restrictive it will be in use and on paper it seems like a lot, but my wife and I do image manipulation over the network so this could be more of an issue than it should be.
They have goofy rules about how many computers can be hooked up to the cable modem. I'm not sure if that means that the cable modem is allowed to assign 3 IP addresses or what, but I have 7 devices hooked up through my broadband router and it detects this as only 1 device, so I'm not sure what the deal is.
They don't list anywhere their guaranteed sustained network throughput. They sell their speed tiers based on a "burst" speed, which is effective for the first part of every transfer. They also apparently detect speedtest tests so those tests always come in just a tiny bit above their advertised burst speed. But although they specifically say the speed is increased to the advertised speed, they don't list anywhere the sustained bandwidth for any of the tiers. For all I know, they are giving every tier the same sustained speed and only increase the burst speed for the more expensive tiers...
But so far the network has been fast and reliable, in spite of having some dumb policies and deceptive advertisements and restrictions that may or may not be a problem for any particular user. In particular, ping times during random periods have been consistent. YMMV, I'm in a neighborhood with large lots and single family houses so the local network is probably not over-sold. More densely packed areas may have worse service.