I spoke with a woman named Brittany when I wasn't sure if I wanted to buy one or not. She informed me that if I purchased it and turns out it was not the problem I could return it for refund that alone made me decide this was the company I wanted to do business with. I got my PCM very quickly I disconnected the battery to my Jeep took out old PCM put new one in reconnected battery my Jeep started up all my problems were fixed it runs like its brand new. I am very very happy