I would recommend staying away from chains and dealerships all together. Find a small independent shop, they have to work harder to find customers so they usually work a lot harder to keep them. I would be surprised if somebody on here doesn't already have someone in the Springs that you can trust.

That is if you can't/don't want to do the work yourself. Engine oil change is really easy and the transmission change is easy too if your car has a drain plug instead of having to drop the entire pan when it is full of fluid.