Vintage is a relative term, but in general it is not super bright primary and secondary colors. I guess this paper could be 1960s vintage but I was born back then. What attracted me to this paper were the washes of color with those scribbly sorts of lines and the misty transitions. For me it's similar to abstract expressionism such as Alexandra Romano, not those hard, choppy, violent ones of the bad boy artists.
I actually think this paper is good for anyone who has use for a bright, non-specific paper whether used whole or in pieces. It has a ton of energy without hard lines or anything specific.