I echo what John says above ^^^
They have never done anything but go out of their way to help me and their knowledge and enthusiasm goes to show!
I had the majority of my modifications carried out on my Edition 30 at VAS Works . Ever since going there for a Revo Stage1 map, their level of customer service and friendliness and interest in cars impressed me, so kept going back up until it was the fully sorted Stage 2+ weapon it was when I sold it... but I still go back there with my current Mk4 Golf daily diesel... just cos I know it's gonna be looked after and cared for as if it was one of their own (though they want me to Revo map it and i refuse
)
A courtesy car shouldn't be expected or demanded when taking a car to a garage, it's something they are doing to help you out... And if they had unexpectedly lost track of their courtesy cars and had to tax one for you so you had one, surely it shows they're going out of their way to help. It takes time to go somewhere and what's to say the post office isn't going to be busy or traffic is going to delay them? Someone needs to learn some patience instead of coming on here slating them.
I know ALOT of people which use them and I'm sure the owners of the Astons and Porsches that use them also because of the quality of their work would disagree with you...
I for one would definitely highly recommend them, and won't be going anywhere else!