Smelling Irisoir, right from the opening, is a deeply satisfying experience to me. The orris is the unequivocal star of the first half hour, an exquisite delicacy of velvety, even buttery richness, violet-tinted woody elegance and just a hint of its rooty quirkiness. At the same time, a honeyed, slightly powdery floral heart steadily grows. Carnation, mimosa, lilac, almond-y helitrope are intricately intertwined into a fleecy bedding over smooth sandalwood and soft balsams, a luxurious, velvety mattress so soothing that the orris could all but fall deep within. This middle phase reminds me quite a bit of L'Heure Bleue, especially the sumptuous extrait de parfum (my reference is one from 90s). But Irisoir has a much stronger presence of orris and less of the anisic spiciness, tonka bean and other oriental elements. As a result, Irisoir feels much more floral in comparison, and more delicate and vibrant as well.
A quiet whisper of peach can be heard throughout the composition as well. It's at first slightly bitter and woody besides its sweet-tart fruitiness, like the flavour close to its stone. When the elegant and enveloping floral heart gradually softens after about 6 hours, the peach gains a bit more prominence. It's now a tender fruity warmth mingled with the dainty, honeyed petals of rose, rendered suede-like thanks to the ever so plush orris. Irisoir maintains this adorably silky skin scent of orris, violet, peach and rose over a discreet salty vetiver until it disappears with a total longevity of at least 10 hours. It mostly stays close to the skin, although it projects slightly during its opening hour.
Irisoir is described by some writers as a close contender to the mythical Iris Gris. As I've never smelt the original vintage version or the reconstructed one in Osmothèque, I can't provide any comparison. But I would say that the peach is more like a supporting actor in this star-studded attar. And the L'Heure Bleue association stemming from its abstract yet nectarous, powdery floral heart, rather evokes to me the perfumery of the early 20s century, like Sultan Pasha himself described it as a tribute to La Belle Epoque. That being said, Irisoir does not feel like a mere copy, but a timeless beauty that truly is inspired by the classic perfumery and moves forward in a certain artisitic direction with the help of quality materials and exquisite blending. I'd highly recommend giving it a try, especially if you are an orris/iris fan or if you enjoy warm floral oriental à la L'Heure Bleue.