Whole Foods Deliveries

So I’ve been doing Flex a few weeks and I think I’ve go the hang of things for the most part, but tomorrow is my first Whole Foods delivery. Any input on how these compare to normal flex blocks in terms of payment or ease of delivery? Also, how exactly does it work logistically? Do I go inside the store, or do I park and they bring the orders out? Just wanted to get some insight before my first Whole Foods delivery tomorrow.