The longevity, sillage, projection are all moderate at heavy spraying. I think it lasts 4-6 hours. I spray 10-20 times on average. It is a beautiful scent. I am not a fragrance expert, but to me this smells like Watermelon Salty Ocean Water to me. It is a great scent. I will absolutely buy again. I only wish it lasted longer and projected more. I have not smelled the original pdm fragrance, but I do highly recommend this one.