Hanna Heating and Air Conditioning

First of all I want to say never post reviews.  This case however warranted a review and I hope to save others from our awful, costly experience.  This specific Hanna location installed two brand new Ruud ac units in our home 4 years ago.  We were promised lower utility bills.  Our bills have consistently been higher since installation of the units, and a lot higher.  Additionally, we have had to have many service calls, most of which have not solved our problems.  One example, at one point the thermostat basically quit working and they wanted $275 to replace it.  Instead, I got the exact same unit on Amazon for $125 and all I had to do was open the box and plug it in.  The last straw and the reason we are finally posting a review is that recently, after multiple trips out to repair one of the units, Hanna insulted us by coming back out and standing in the entry and telling me we needed a new coil.  The technician said the part was covered under warranty but the installation was $600.  He said he knew this was the problem because it is the only thing it could be, I am not kidding at all, that is exactly what he said!  He never left my entry, never looked at the unit, never checked ONE THING and suggested a $600 repair, and again, that was only for labor.  We called Hanna after he left and the lady that answered said part of the cost was filing a lot of paperwork for the warranty and that maybe we should try a Trane, I guess suggesting that we buy more new units from them after only 4 years.  Anyway, the place is a complete joke.  We had another company out that afternoon, they added freon and the unit has been working fine since.  I would stay away from this place for both service and new installations.