These guys were great! Super friendly and very helpful. Came in with a cooling system problem and they were able to check out my car first thing in the morning. Turns out it was a bad radiator cap and a loose radiator hose clamp. They replaced both, and purged the air out of my cooling system for less than $50 for parts and labor. Would've cost me at least double that at a comparable auto shop. Later on, they called me up and told me the mechanic had accidentally put the old radiator cap back in instead. I dropped off my car and they put in the new cap as soon as the engine was cool enough, even though it was after hours. I can't say enough good things about these guys. I've never had mechanics as honest and thorough as Centennial. Highly recommended!