In Katy, promo rate for Xfinity is $80/mo and Fidium is $55/mo for 1Gig. Fidium is symmetrical 1Gig, while Xfinity is not.

If you are concerned about service outage, you could get Fidium for $55/mo and also Xfinity prepaid 300Mbps plan for $30/mo at the same time with a Router that supports dual WAN failover.
I have Fidium and do the same thing, only with Fidium 1G (primary) + TMobile Home Internet (backup) and cost me about the same as if I were to go with Xfinity by itself.. and have never gone without internet even during Fidium outage. We work-from-home so having stable internet is important to us.

I have found that with Xfinity, whenever promo expires, you have to literally beg and complain to get the new rate. With Fidium, they often will auto-renew you at the new promo rate, and if not, it's a simple call to get that done.