I've been purchasing from FCP for over a dozen years. Their customer service is second to none and the Lifetime Warranty on parts are the main reasons for using FCP. No where can you find a seller who will allow you to returned consumables. This includes motor oil, oil filters, air filters, cabin filters and even brakes.
Their pricing is better for many products while the rest will be comparable with other online sellers. With a purchase of $49 you get free shipping so it's convenient to buy from them without having to make a large purchase each time. Will continue to make FCP my first stop for parts.