It's only as good as the person operating it like any tool.
^^^That^^^
I like to take my car to a Proper chassis specialist, like Wheels In Motion or Center Gravity, who isnt interested in the stock settings and instead will set the car up to handle how I want it. I then keep the print off and when ever it needs realigning, i get someone with a hunter rig to reset them as per the printout. Much cheaper than paying £100+ each time.
The response I've had from Awesome GTI in regards to why the rear wheels were not set up properly is that they said the bolts had seized up
Thats ridiculous. Id tel them you want your money back or you will put a review of the shoddy work on the forums. How much was the alignment out if interest?
Also what bolts seized? It seems like both the Camber and the toe werent changed