I work at a dealer (Volkswagen) never had a chance to be at a independent shop... as preferring one or the other I can't say, some say avoid the «stealership» at all costs but I must say that there is ALOT
of dubs that show up on a hook (towed in)
because «indy's» don't have the tech or the techs to solve an issue, at the same time there is a lot
of good shops that know what they are doing, do the research
VIA the web or
word of mouth and find out what works for you and your vehicle.