Neem oil smells really vile, sweaty socks and DMSO kind of vile. But, like I said, it might be tempered when it's mixed with oregano oil. You can even smell it in the soap, but it is very slight. The oil magnifies the odor like 1000%. To me, it's as offensive as patchouli. I know some folks find it heavenly, but to me, it's like my nose hairs get singed.
Neem is a very powerful, natural fungicide, it's used as a horticultural oil for fungus on plants. Neem also has antiviral and antibacterial properties just like oregano oil.