I'm not sure there is a demand for first impressions of Invasion Barbare, since it's a pretty hyped, and equally expensive fragrance. Nonetheless, I offer you my first impressions. I've sprayed this on about 30 minutes ago and let it settle (I added my 12mL sample to an atomizer), so this is very initial impressions:
Upon application (if I may steal from Dollars&Scents), the first thing I get is a tea note, which is not listed in the note breakdown. I think it may be the cardamom, but it is not a "kitchen spice" smell like some often identify with cardamom. It is backed by some sparking citrus, mostly bergamot (lemony) with some grapefruit that I only barely smell when thinking about it hard, so I don't think you would smell it idlely.
Some florals open up pretty quickly, which consists of mainly lavender that is very prominent, but also soft enough to interplay well with the citrus/cardamom combo. I get a little bit of ginger in there, which adds a nice depth and compliment to the citrus especially.
That's all I can detect immediately. Naturally the fragrance will develop over time and perhaps I'll get some of the vanilla in the dry down.
As for initial impressions, I really like it so far. It's sophisticated in a way I've never smelled (being relatively new to the hobby), and the lavender blends so perfectly with the citrus notes on the top, which offers a very unique take on classic perfumery. I think the cardamom will take some time to understand, since it is a little strange to smell on skin, but it's not really a bad thing.
It's going to take some time to truly appreciate, and I'm not one to jump to any conclusions, so you're not going to read anything like "this is definitely full bottle worthy" or "this is a masterpiece" outside of those two instances. So far though, it's giving off a great first impression.
What do you think of Invasion Barbare?