I made a cheesecake and all the recipe called for was Cheescake.
I've only used CAP NY Cheesecake alone, but usually they need to be mixed with other things.
The other one I use is TFA Cheesecake Graham, as the others I've tried were meh to bad.
And not all the flavorings we typically use around here will work very good stand alone.
They really shine best when used in a recipe with other flavors, and sweetener is an option.
Which is why it takes a pretty good collection of flavors to make something decent, although some are good with just 2-3 flavors.
I suspect Liquid Barns flavors are "House Blends" made from different flavorings to create a "finished recipe" in a single bottle.
They most likely have any Creams, Vanillas, Sweeteners, and whatever else already added.