I had the opposite experience. S17pro went in limping and came out of their facility much worse. Add insult to injury, it took over two months, when it was returned a heat sink was loose inside the box, and under a stereo microscope, one side of the PIC chip wasn't even touching it's pads after I assume they reflowed (had to resolder this myself and still doesn't work). The first diagnosis was all temp sensors were bad at a quote for $400 to a PIC, Boost circuit, some temp. sensors were bad on two boards that were then deemed "unrepairable", $129. From my experience, there is one point of contact there - he is knowledgeable and professional when you are able to talk to him. As of Nov. 2020 they had 6 techs. there.   

Repair Initiation: A
Diagnosis: C
Customer Service while in repair: B
Actual Repairs: F
Pricing: B