Its been a long time since I went a quick-lube place, but I recall back before I was mechanically savvy and started doing my own that, other than resisting the inevitable upsell (how many PCV valves did my car have, I just replaced one 3000 miles ago!) I never had a bad experience with them. That being said, my daughter uses them almost exclusively and somewhere along the line one of them left the drain plug on her PT Cruiser as round as a donut. Hopefully it was the last one before I started working on her car, otherwise I shudder to think how any of them were draining the oil when they got up underneath. Hell I ended up using a large ez-out and replaced it, and let me tell you trying to drill a pilot hole, hammer home an ez-out and torque it out with only front wheel ramps was not EZ. Nevertheless, that has so far been the worst experience I've ever had with them, and I don't fault anyone who doesn't have the mechanical skill or time for going to these places, its just a shame that there can't be a reasonable level of confidence to expect quality workmanship.