I recommend Olde Town Car Care all the time. They're great! I've been using them for 20 years now. Even when my car was still under warranty by the dealership for a period of time, I'd still go to Olde Town Car Care to do regular oil changes, grease and lube, or whatever maintenance. I only went back to the dealership for repairs that were under warranty.
I'm always able to call in advance and make an appointment, which is very convenient for me. I can drive over there, drop off my car, fill out a form, tell them what time I need my car back back, and they always have it ready. I can walk home, which also makes it easy for me.
I work in Olde Town Alexandria as a Realtor, so having my car available to me is very important. If I have any problem, and something needs to be taken car of, I can stop by Olde Town Car Care and, if it's a quick fix, they just do it.