Horrible.
The person Encore Air, LLC Heating & Air Conditioning sent out was a person who was new to the company. He basically acted as an assistant to new installations so when he came to look at my air conditioning unit, he was clueless. That's not his job, to fix an existing one but he usually installs new ones.
Basically, I paid $500 to get my AC charged. First, he put in a $175 thermostat, which wasn't necessary. Then he told me my system here was all wrong, even though 111 units in the building are all installed the same way. I wrote the check and said goodbye and I would never never never never, never go back to them.
When he came I told him I believe the cooling needs charging but he said no and that they never start there. It sounded like this was normal business practice and afterwards he told me he would have his boss call me, but nobody ever called me back until much later.