Arso is my favorite from Profumum. Olibanum, Ambre Aurea, Patchouly, are all very good too. Fumidus is interesting and compelling, but not sure I would describe it as good. Aqua di Sale, Thundra are both good depending upon the batch you get. All Profumum scents seem to have batch variations and scent evolution and change in fragrance oils and their smell over time due to the high use of natural oil ingredients which have considerable variability from batch to batch and as they age. I had two bottles of Thundra for instance that smelled like two different scents entirely. My Ambre Aurea went from warmth incarnate to a seaweed ambergris smell after a year or so. It just happens. Arso has stayed very reliably excellent. If anything its boldness has been dampened a bit with time, but it could be that my tolerance for this kind of strong scent has improved too.
Arso has similarities to these other fragrances: Bois d' Ascese by Naomi Goodsir - darker tar than Arso, CChristian V - more incense, less woods than Arso, Black Tourmaline - more incense better development.
