I went to Sun Devil Auto a couple of months ago with my previous vehicle. I had an idea that it was a problem with the spark plugs.
When I got a call back from them they said it was spark plugs but that I also needed the timing belt replaced due to milage and that it would cost $900. I asked what it would cost to get it fixed without the timing belt and he still said $900. Obviously the guy was pushing for an expensive timing belt replacement when all i needed was new spark plugs. I've dealt with lots of auto service centers in my time but this one was the shadiest by far. I wouldn't consider this is miscommunication or misunderstanding, the guy was clearly trying to get me to okay an expensive auto repair that didn't need to be done.
I ended up not getting any repairs done by this shop and had to pay $75 because they looked at it.
As for the 5 star review, of course it is going to be 5 star, her service was done for free and she wasn't pressured into getting work done on her car that she didn't need.