We've had no trouble with our Comcast internet. Sure, it goes "out" once in awhile, but usually, it's just reset the modem, or the Wifi thing. Occasionally, it's been because they are working on some lines, etc. It's faster than anything else we've had (well before we had this, we had dial up, like 10 years ago).
Still working on DH to get cable back. It's just a point with him. We pay much more money for other things. The Apple TV device works, but it's a lot of "playing" to get it going and at this point, I am overloaded with remembering all of these technology things.