Can Xfinity possibly be any worst in speed and customer service?
The only place I can get Xfinity internet is on the main level of my home. The ridiculour wifi router they provide afor $11 per month stinks!
I bought my own cable modem/router at Costco because I generally prefer owning to renting. I got the Netgear C6900 and it covers my home just fine. In fact I can take my laptop to the neighbors and I still get a great connection back to my place. Just an option. You can probably do even better with a seperate modem and router.
You might also look and see if your neighbors are on the same frequencies.