I brought my STI to SoK in May. I explained in details how the problem happened and all the steps I took to troubleshoot the problem. SoK called me in a few hours after "diagnosing" the problem and this is how the conversation progressed: SoK: "We first recommend changing A part." Me: "Will this solve the problem and what is the cost?" SoK: "I don't know but according to the Subaru process, we need to change A part because of the given situation. It'll cost ~$700" Me: "Umm ok, so what happens if you change A part and it does not solve the problem?" SoK (Tone-of-voice becomes defensive): "Of course you still have to pay for A part ... we installed it ... you don't expect us just to give you free parts." Me: "Oook, so what happens next?" SoK: "According to the Subaru process, we then change B part." Me: "What is the cost?" SoK: "~$800." Me: "Ok, so again what happens if A and B do not work?" SoK: "Oh, you still get charged for all the parts and we continue to diagnosis ..." I told SoK not to touch the car and I will come pick it up. I contacted Subaru of Gwinnett (SoG) and explained the problem and situation w/out mentioning SoK. SoG stated that customer's do NOT get charged for parts that do NOT solve the problem and they just put back the old part and continue the diagnosis ... good answer and totally understandable. I left work early in Norcross ~4pm on a weekday to pickup my car at SoK (I paid ~$150 for their "diagnosis") then drove all the way back to Duluth to drop it off at SoG. I wanted SoG to have the car by the end of the day so they could start diagnosing the problem first thing in the morning. SoG called me the next morning and stated that they think it's due to C problem. I started to ask more detailed and technical questions and the service individual was smart and decided to pass me directly to Marc, the Tech working on my car. Marc and I chatted for a while and took the time to explain the whole situation thus I comfortably asked him to proceed. Marc called me back later in the afternoon and stated the problem has been FIXED, it was indeed problem C ... it was neither A or B thus I almost got jacked by SoK. I am more than happy to pay for service and parts when needed however throwing parts at a problem, giving defensive attitudes, using Subaru process (A process gives you the foundation, your "expertise" is supposed to know when to utilize it) as a scapegoat, etc. is NOT the smartest move ... SoK. Do NOT use Subaru of Kennesaw "SoK" and drive the distance to Subaru of Gwinnett "SoG" if you need service! Thank You again Marc, Neal and Jill at SoG!