I have been purchasing parts from RockAuto for well over two decades. What keeps me coming back is their selection, fast shipping, and prices. Instead of having a single brand of a part to choose from they typically have several. You decide the quality of part and what fits your budget. What few returns or warranty issues I have had the return process is painless, the same applies for core returns of reman parts. Their parts catalog is well organized and easy to use also.