These rollers smell amazing! I initially got this set for the Eros and Halo rollers, but I really loved them all. Surge is really refreshing - I like to use it when I'm feeling nauseous to keep fresher. I like that Halo isn't as overpowering or strong as other peppermint oils or headache remedies, it gets the job done without burning my eyes. The rest are also wonderful, but Surge, Eros and Halo are my favourites from this set.