Changing oil isn't rocket surgery. Besides, Bills Quick Lube is privately owned, Bill is a personal friend of mine, and I don't think they've screwed up a drain plug or whatever in the 20 years they've been in business. Like I said, I take my own Toyota/Lexus filter, they change the oil and check the fluids and tires while I watch and I'm on my way. I haven't take a car back to the dealership for serivce in over 15 years. All the other checks that are on the list, I do myself.
If I have a problem that's for warranty, I'll take it to the dealer.
I believe if you browse the threads here you'll find as many dealership, yahoo screwed up "tech" stories as you will "Jiffy Lube" stories.