I have been using the services of Hi-Tech Air Conditioning for the last few years and, overall, I think they provide good service. Their technicians are always on time and they arrive on schedule. They're also fairly easy to schedule with and they have showed up right away when I've called them out at short notice. Their technicians are professional and efficient. They have good customer service and are communicative and responsive. The staff are pleasant and easy to deal with. I have no complaints. I did have an issue one time with a leak they couldn't identify, but they resolved it to my satisfaction which I appreciated. I was happy with how everything turned out.