I have only ordered a few items from RockAuto and only received two shipments, but all of the items I ordered exceeded expectations, and they arrived on or before the expected delivery dates. The ordering process is fast and easy with plenty of options. The online descriptions ensure you get exactly what you want for your project, avoiding the need to go back and order additional parts to complete a job. The prices are the best you can find--I have had no problems with any aspect of my dealings with this company.