Back in the 90s, my ex was a manager at the Jiffy Lube in Chapel Hill, NC. All those quick change places, IMO (and experience), are about is sales - making money. The cheap price advertised for the oil change is a ploy to get you to bring your car in and go through their checklists to see what sales they can add-on to the $19.99 oil change to boost their sales and make their quotas for the month. (And they love it when women come in.)
I, as a rule, never go to those types of places because I know that "moron #1 or #2" are going to come out and say "Ma'am - your transmission fluid" or "your serpentine belt needs replaced because yadda yadda yadda". If a person takes their car in for an oil change - that's what they want, pure and simple. If they want more done - I'm sure they have a particular mechanic they take their car to for those types of things.
If you do elect to support these businesses - buyer beware. In the years that monster worked for Jiffy Lube - I heard many stories (also witnessed some) that were horrific. They forgot to replace the oil pan. Ooops! The filter wasn't tightened, but they pulled it out of the bay anyway. In one case - an emergency brake pedal got stuck on a brand new car and instead of alerting the customer/owner of the car to give him the choice of having the dealer fix it or Jiffy Lube - they (the JL people - my ex being the decision maker) decided they could un-stick it themselves. The outcome - the brake pedal did disengage and smacked my ex in the nose - braking it of course - had it been about an inch or two higher could have caused a much more serious possible fatal injury considering the psi of the disengaging pedal with his face right down there in the mix. (No, he wasn't the brightest crayon in the box - notice I refer to him as "ex". )
Also - keep in mind - the employees at these places for the most part are not certified mechanics or do not have a whole lot of training, only the training that shop provides and is geared more toward sales. Most of them are young guys that cannot be employed by a certified shop due to lack of training or experience. It is a place for them to start out and work their way to gaining more experience and know-how. (Not meant as a slam or dig or to offend anyone in any way.)
In closing - I would like to express how grateful I am to my dad for making sure that I knew certain things before I left home - how to change a flat, how to change my oil, how to change my spark plugs, how to test my battery and how to jump a car, how to flush my radiator, etc. It has come in handy over the years and saved me a ton of money. I love him for that and the fact that he still reminds me to check my oil and make sure I change it.