We had our biyearly "inspection ", as ALWAYS the representative TRIED to sell us, yet another something we HAD to have for the correct function of our air conditioner. We bought from them a $4000 brand new unit2 years ago, , NOTHING should be needed! They seem to convence my mom to purchase. I was here this time and said NO. The rep named Marc, TRIED to sell us a $1400 thing we HAD to have. He WOULD NOT take no for an answer. I had to raise my voice and get alittle beligerate with him. He STILL did not give up until i YELLED to him to leave the property. Marc was STILL insistent that we needed the addition and left his number if we changed our minds. He EVEN tried negotiations to bring the item down in price by $300.00! No means NO!