They have over 500 colors to choose from, I just got the my first one this week and have only used it once so far... From my first impression it's very blendable and the color payoff was great - but I only got one color to try, so we'll see, I think I might need more soon!
The only sucky part is I don't really know where locally to get it, I purchased mine from Alcone on 49th street - not sure if you're in Northern NJ or not, but I've only found stores in the city that carry it.