O'Reilly Auto Parts store #3470 in Vallejo, California, located at 3580 Sonoma Boulevard, offers a wide range of auto parts, tools, and accessories, along with helpful store services such as free battery testing, wiper blade and bulb installation, and Check Engine light testing. Customers can also benefit from the free Loaner Tool program, which requires a refundable deposit, making it easier to complete car repairs. The store staff is generally committed to providing quality products and a good customer experience. For example, one customer appreciated a staff member who went out of her way to assist with carrying a battery, highlighting excellent customer service. On a rainy night, staff members Debie and Matteo were praised for their quick and helpful service in providing a windshield wiper replacement. However, some reviews mention inconsistent customer service; one customer noted that employees seemed annoyed and unhelpful when asked questions, leading them to shop at AutoZone instead. Despite this, the store has standout employees like CJ, who was praised for his knowledge, pleasant attitude, and excellent assistance, making him the reason customers return. Overall, the store offers quality products and helpful staff, with some staff members providing exceptional service in challenging situations.