Sniffing from the bottle, the product has a strong floral fragrance (not unpleasant, but maybe not what a man would want to smell like?). Four capfuls required in a HE washer, and the goopy consistency makes it difficult to measure. When the clothes were wet I could still smell the floral fragrance, but it dissipated when the clothes were dry. Not sure if it took the deep stink out of my synthetic clothes in just one wash, but it seems to work ok so far in terms of getting the clothes clean. I'll keep using it and see - not sure if I'd buy again (expensive compared to Tide) but it made doing laundry a bit of a treat, which is nice.