Pretty much a standard 20% off, sometimes 25% as a deal depending on amount spent. BOGO value menu McDouble / McChickens. Points that add up to actually free food. Items not on the menu in store. It's robbery if you don't use their app now.
This walkthrough is just an example, open the app yourself and have a look, most of the deals are just an item or two away from being a thing people would actually order.
If I do eat McDonalds its usually just a burger + fry + drink usually around ~$6ish unless I'm ordering for others.
If everyone else refused to sell their data, we wouldn’t be in this position.