Complaint Review: Mc Serviteca

My A/C was blowing warm air so I decided to try Mc Serviteca because its near my house.  I took it in and they said they did a pressure test and found that there was one bad seal to be replaced and it needed to have 2 cans of A/C refridgerant, cost $120, so I did it.  1 week later the A/C was blowing warm air again so I took it back and they rechecked it ( free ) with a leak finding dye.  They said there were major leaks << why didnt they find those the first time ?? >> and the repair would cost approx. $600-700 so I did not do it.   I went to an auto parts store and bought a recharge kit - A/C Pro, recharges system and seals A/C leaks - cost $45.  Almost 1 month later and the A/C still works great !!!  I will NOT be going back to Mc Serviteca, I think they were going to charge me the $600 - 700 and just use a simple leak sealer like I did.