Hi-Tech Air Conditioning, Inc has been a great company to work with. I have never been disappointed with them! Our son is a system network engineer and his company uses them so he recommended them highly. I sure am glad he did. They gave us a better deal for a better unit than other companies we were comparing at that time so I find their pricing to be more than fair. They recently came out to do the annual maintenance and replace the filter. Everything is working well. All of the technicians who have come out over these years have been very knowledgeable, professional, pleasant, personable and polite. They take ample time to review what the problem is, talk about possible solutions to fix it and answer any questions that I may have. I would tell people that we have never had any problems with Hi-Tech, they are honorable and trustworthy. I would highly recommend Hi-Tech Air Conditioning, Inc!