Like everything Comcast does, there are hidden obstacles to this deal.
Primarily the deal does not include HD, at least that is what they now tell me. I had it with HD for 6 months, and then they decided to disable it & inform me that I need to pay extra to turn it back on!
Also us fools who pay money to Comcrap, are limited in how we can watch HBOgo. They block it on a number of set-to-boxes, including Roku. So if you want to see it on your in HD on your TV you must either use the provided cable box (that you are forced to pay a rental fee for) or use your computer or mobile device and fling it via a Chromecast or HDMI cable.
Add to this the fact that the internet is never anywhere near as fast as their ads claim, and often goes down in the middle of the night, and I'm left screaming "I can't wait for Google Fiber!!"

I got this option by hanging up once and calling back again. So far so good. I play through Xbox. They just sent me an HD cable box or something? Haven't unpacked it yet.