I'm pretty sure the first fragrance I got / was gifted (for christmas) after I joined basenotes was Aventus. It was the fragrance a friend let me test out of nowhere, and I've never in my whole life been so blown away by a fragrance. Do mind, this was at a time where I would do three sprays of a random Boss, go out and not think more about perfume that day.
So yeah, Aventus as a sort of a gatekeeper for me, opening me up to a whole new world. In a year I've bought probably 50 fragrances, and my collection is something I'm pretty happy with now.