M7 - Definitely NOT a safe blind buy (if such a thing actually exists)
Fuel for Life - SNORE! If you are "on the fence" - that's an idicator that since you're not sold on it now, think of how you'll feel about it after you wear it for awhile and the novelty of a new fragrance wears off. I have resigned to only buying fragrances that I've tested the hell out of, and that I'm CRAZY about.
Havana - A great tobacco scent. A bit too sharp for me, though. 5 sprays seems like a bit much for this one. Be careful or you'll turn yourself and others off to the fragrance. You don't want to choke out your patrons with that high-pitched tobacco blast.