For the editing experience they are strong, and if you run a single marketing site with developers beside you, they may be the right answer. The difference is what the content is connected to. Theirs lives in a system separate from your store, members and locations. Ours is the same engine, and we do not charge more for every editor seat.
Model every property from one core
Create content types for pages, products, locations, members, courses, events, and programmes. Each property inherits the same structure, while local teams only change the fields they are allowed to.