Best HVAC Installation Or Replacement in Durham NC

Bell Cow came out twice referred by our home warranty company,  
1st time it took them a week to come out and then the guy left after inspection without checking if the air conditioning was working (it wasn't) and never said he was leaving or why the air conditioning wasn't working.
It took them 10 days to come back and tell me it was a part not covered by our insurance and the part would be $385 plus tax & installation.  They never spoke to the warranty company, then the guy just left without saying a thing while I was calling the warranty company.  
Then they said it will take 24-48 hours to look at the service record and then they'd schedule an appointment to fix the problem. (probably another week)

I'm so fed up with the warranty company and their 2-star rated (should be -2 stars) bad repair companies that I called a local 5-star yelp company Burke's heating and air, they'll be here the next day, and fix it for $165 installed.  They've already texted me a thank you message for calling and an appointment time confirmation with another thank you!  Very nice on the phone too!
Bell Cow was just plain rude and I always got a voicemail when I called them, one woman (Dina) left me a RUDE voicemail about how busy she was but she would try to help if I called then left me a wrong phone # to call her.  Left a voicemail for her a day ago, still no return call (must be too busy!)

I wonder how Bell Cow even got 2 stars on Yelp, I would have given them a -2 rating if it was available!