Channeling Andy Tauer (or a tale of torture by powder)...
Rosarium opens with an accord resembling black ink, with hints of underlying dusty dry vanilla. As the composition enters its early heart the black ink accord vacates as stark musk-laden frankincense joins the dusty, highly powdery vanilla as it grows into co-star status adding a slight amount of sweetness in its wake. During the late dry-down the frankincense recedes, leaving the powdery vanilla, picking up a bit more sweetness along the way while adding supporting varnish-like woody vetiver through the finish. Projection is very good, as is longevity at 11-12 hours on skin.
I had high hopes for really enjoying Rosarium based on its impressive official notes list, but alas it wasn't meant to be. The key culprit is effervescent, dusty vanilla not unlike the intolerable stuff Andy Tauer uses as his signature base. If someone told me Tauer was the "ghost perfumer" behind Rosarium I would absolutely believe it. That said, while the perfumer isn't Tauer, the actual nose must have been awed by his style as the similarities are incontrovertible in my opinion. Also very Taueresque is the musky, almost root-beer-like co-starring accord that adds an off-putting element to the fine frankincense presentation in the composition's heart. In truth, if one can either get past or enjoy the vanilla root-beer float aspect of the composition, Rosarium really isn't that bad, it just represents the polar opposite of my preferences. The bottom line is Rosarium channels Andy Tauer pretty well, and those that enjoy his compositions will near-certainly enjoy Rosarium too. Unfortunately as one who doesn't, the composition was a non-starter about 30 seconds in, only geting worse as time passes, earning a "below average" 2 to 2.5 stars out of 5 rating and a strong avoid to the powder averse. While this is a major pass for me, those that love Tauer's powdery vanilla signature should give Rosarium a sniff as it will most likely impress (even though it is not by Mr. Tauer).