Worst Dispatch & Technician Service ever!

We decided to switch to xfinity. Set up a new service request online, received an order number. No contact which was suspicious, but waited to see - no one showed up at designated time & day. Called xfinity, was told that online orders don't actually set up an account. Service rep on phone very nice, set up an account, chose a new day and time the following week (only time could get off to be home).  On that day, another no show! Called customer service AGAIN as the 2-hr window ended without any techs, pleasant women, she said the previous rep made a mistake &/or the technicians said we weren't home. (What the heck?!)  We were home, front door open and sitting at table nearby working off a hotspot the entire 2-hour window & before!  Arranged for a 3rd and final chance initial service install for today, from 12-2 pm. Rcv'd a confirmation text yesterday, great. Started rcving texts during the 2-hr window saying "Your Technician is  enroute", then "Technician is arriving", "Technician is parking, getting equipment, may be working outside". I was standing at the front door or in driveway itself - didn't see any xfinity truck or technicians despite these text messages. Called the Costumer service line again, this was about half way through 2-hr window & explained situation, he (again very pleasant, professional) contacted dispatch & reported back that yes technicians were on the way, they'd be there in 20-30 min, just before the end of the 2-hr window.  No one showed up. Called AGAIN, was told that technicians said we weren't home - logged at the time I was standing outside the condo on the phone with their service rep!!  I was on phone with rep, then a supervisor for 55 minutes. They said there was no more technician availability, all they could offer was another appointment next week. What?! I have worked from home on a hotspot three different days, waiting for them. I have been on the phone with their (granted very nice call folks) for a total of 112 minutes today, plus 85 minutes over the last 10 days.  We won't be here next week and I have put too much time into this.  Such unprofessional, poor service on part of dispatch and technicians. Strongly recommend against getting xfinity.