My A.C., while older, was not working well. The technician told me it was obsolete, needed freon and that it was not worth repair. They did give me the option to recharge the freon for $700 to which I declined. They charged me $90 dollars and left with nothing done other done to try and scam me . I called another company and they recharged the freon for only $140. Save your time and money and DO NOT CALL OR USE MIKE WILLIAMS HVAC!