I wore this to work two days in a row, and it seemed to have an effect on people that other fragrances haven't had... all day long people were leaning over and getting into my personal space... which I have to say has never happened to me before.
I was going to buy it anyways but after seeing the reactions (no compliments, just body language), I got it immediately.
As for Tobacco Vanille, yes, there are hints of that, but they are different scents. I find Tobacco Vanille better in terms of longevity and sillage, but what I like about Spicebomb is the evolution--and as people have mentioned Tobacco Vanille is rather linear.
Spicebomb has character, it is always changing and revealing some new facet, and it develops over a long period of time. I find this chameleon-like novelty totally compelling, and this particular aspect of the fragrance really is unlike anything I have experienced in some time.