A couple weeks ago, my MBP wouldn't boot...turns out it was a problem with one of the memory slots. So the whole board had to be replaced. I brought it in to a local Apple Store and they agreed that the board was no good. Quoted 3-5 days to replace...but there was option B. For $99, paid for Procare and had my MBP back within 3 hours. They had the board in stock, and the Procare bumped me to the top of the line.
There were lots of computers in for repair, so it was well worth the $'s in my case. Though they promised 24 hours with Procare, they had it done by the time I'd finished dinner 🙂
Mark