To start off:Good Experiences:
Scuderia Servicio http://www.scuderiaservizioeuropean.com.au/
has always done well maintaining my Italian cars at reasonable prices.
Prestige and Custom car salon in Castle Hill http://www.prestigeandcustom.com.au/
details my cars inside and out. My cars don't have any swirl marks or scratches as I have had a full paint correction performed by them on all of my cars, sterilise and detail interior, re-feed all the rubbers and seals around the car to make them as new again. That website seems to be old and has the wrong adress in it. Each car takes about 20 hours work to make brand new over 3 days and boy is it worth every cent. Much more price reasonable than what I hear is spoken by mobile guys on here, just as good oif not a better job as well. Also did the tints on my cars, I have previously had a tint job done a couple years ago at a Solartint and the tint quality, colour and workmanship was extremely average, Prestige customs have a much better tint with a pure black carbon colour, even the edges of the tint is filed to hug the edge of the glass than the solar tint job that looks like someone just ran a stanly knife roughly around the edge of the window.
Bob Jane T-Mart Castle Hill http://www.whitepages.com.au/business/bob-jane-t-marts/castle-hill-nsw/B%7CN00W%7C115012c5%7CBob+Jane+T-Marts
New store and hasn't been advertised yet. The boys there have done a great job with all of my cars, my families cars and my missus's car. They have wheel aligned my whole fleet including my exotics. Extremely compitent, latest equipment, latest wheel alighnment rig that even has hyper car wheel alighnment specs programmed in it already (so no guess work). No marks on my cars even when leaving the cars with them for the day. Best of all they charge the same for an Astra as they do for a Lambo which is pretty hard to find.
Ramspeed Seven Hills http://aussieexotics.com/showroom/search.php?criteria=TechArt/
(spam speed as Phil calls them) Did some minor work on a Gallardo, cosmetic changes. Wasn't much of a job but still a positive experience from my brief encounter.Bad Experiences:
Ferrari Maserati Dealer service centre in Waterloo. Charged an arm and a leg just to diagnose a throttle body fault on the 3200gt (took 10 minutes of their time to throw it on a computer diagnosis rig), to top it off they scratched the car around the engine bay and outside pannels and then said those fresh scratches were already there.... They must have just figured it was only a $70k car, not worth being careful with
Another couple of minor bad experiences that I shouldn't put on a public forum incase someone has a go at Ash for hosting defamatory material on his website.