I made a Wal-Mart "List" on the app for the first time.
It had over 30 items (if the item is Count +2 or +4, each one counts as1 item).
It took me 2 days.
You have to choose each item, organize groups of items (optional), and products can go out of stock in real time,...
meaning your List can change every time you look at it.
I completed my task but strange to say it draining after 2 sessions working with it over 2 days.