It smells fresh and it's not greasy. It's not a light moisturizer, but not heavy either. It's just right :)
FYI- don't use it as a massage lotion, though, because it starts beading up if you rub it in too deep.
When I bought this, the MAC girl trimmed it for me and she did it to perfection! This brush does the work for me and gives me a flawless line. I use it with the fluidline eyeliner (which is also amazing).
It does take a little work to de-clump, but once you got it, it looks great! My lashes have never looked so fantastic. I don't have a problem with smudging, either.