I took my car into Pepboys to change my termostat and antifreeze. I love my car and don't mind spending money to maintain it. Ever since the repairs, my car smelled of antifreeze. I thought it was nothing.
One month later, I noticed that my car was running a little hot. I stopped and noticed smoke coming from underneath the hood. Once the smoke cleared, I saw that the radiator was half empty and antifreeze was still dripping from the area of the termostat.
The next day, I was back to Pepboys. Pepboys claimed that it wasn't their doing and gave me an expensive list of repairs. I took my car and 'ran.'
My advice is to ask around for a good shop and it is worth going out of your way to get it done right.