Oesel is really an interesting scent. Imagine a strong, rather real-smelling orange blossom paired with a heavy dose of woody petitgrain, so it smells heady and floral and potent, but also dark, waxy, and woody. Then, take that and put it over Creed's signature aquatic mix of of Allyl amyl glycolate, dihydromercenol, and ambrox, so it smells like someone layered a woody floral perfume over a citrusy Creed. The result might be a bit of a hard sell - the salty aquatic elements are fairly masculine, while for people who live places where orange blossom isn't considered a masculine smell, the flowers are quite loud and feminine and will likely scare away the Creed fans who are clearly a big part of Oesel's intended audience.
It all works better than I'm making it sound. It's kind of like someone took CK One and replaced the lemon on top with citrusy flowers, but upped the concentration until it was very rich and strong. There are absolutely wonderful points in the day, especially when the base starts to come in and the ambrox mixes with a pinch of soapy vanilla to create a ridiculously thick, luxurious bed for the flowers. It ends up as sweet vanilla after going through an orange creamsicle stage (which is the only part I really didn't like).
Worth testing if you're an open-minded fan of either florals or aquatics. But if you believe in rigid distinctions of masculine versus feminine in your scents, you can probably safely skip this.