Xfinity is a joke!!

I am so frustrated.   I set up an appointment thru the Xfinity assistant, since I could not speak to a real person.  I was suppose have a tech to come by my house between 8 - 10 am this morning to service my internet.  No one showed up.  I did a live chat with a person who apologized and assured me that the tech would be at my home within an hour.  Then 30 minutes later he told me the tech would be by between 3-4 this afternoon.  I told him that I took the morning off to have this work done.   I was not happy and I wanted to speak to the supervisor.  Which never happened.  I called the 800 number I found on the web, then spoke to a person after waiting for an hour.  That person told me that there was no open work order on my repair, (are you kidding me??) so I had to reschedule for tomorrow morning 8 - 10 am 
I pay almost $150 a month for 1200Mbps of internet speed.  I did a speed check thru an app.  The speed reading was 22Mbps download.  I have to unplug the modem for 10 seconds, then plug back in.  Then it might work for a short time.  I am about done with xfinity.  Does anyone else feel my pain and aggravation?

Damian