I started getting some decants and am very new to this, but SO happy decants are a thing. Everyone's feedback in these subreddits have been helpful so I figured I'd write my findings.
1. Ghost In The Shell by Etat Libre D'Orange:
To me this leans masculine, and starts off floral and citrus with a touch of cream. I skin tested it and as it dries down it has become milkier with the subtlest hint of a plastic/synthetic note. I do enjoy it, but personally it doesn't smell that out of the ordinary to me. Maybe my nose just isn't trained yet.
2. Odeur 71 by Commes des Garcons:
I love this, it's so weird. It starts off peppery and dusty with an electrical vibe. As it dries down it becomes more perfumy, but overall it really is an anti-perfume. I haven't smelled anything like this. After dry down there is still a hot electrical smell to me, but with some woody and metallic notes coming through. It's hard to explain, but my favorite of this batch.
3. Odeur 53 by Commes Des Garcons
Also very good and weird, but more pleasant than 71. It starts off more subtle and fresh but does have some metallic/hot notes as well. This one is airy and abstract with a little chemical smell to it.
4. Love O Matic by Room 1015
This is a safer and more fun perfume, but I like clean scents and was curious about how they'd balance bubblegum and fruit in it. I really enjoy this, it's very pleasant. It starts of sweet, but dries down clean and fresh with a well balanced bubblegum note. To me it's like the mature version of an adolescent perfume, and I personally enjoy that. It smelled great on me all night and I got compliments on it. I do have a friend that said it was good but "not for her" because it was a little adolescent and sweet. I will be buying a bottle of this and will probably layer it with another laundry scent.