I've gotten 3! Just ordered a fourth actually
The first one I got was Alta Perla and it is AMAZING. I got a full week's wear out of it and I usually can't make a mani last more than 2 or 3 days max. I also have Escatin and Rouge, and I just ordered Bianca and it hasn't arrived yet. I just wore Escatin last week and it's beautiful also. I can't comment on the wear because my top coat ruined the mani. I've been using the Dior Gel Coat and honestly I'm so sick of it. Beautiful shine and gel looking finish but it cracks and causes major shrinkage for me. It gets so thick when you get down to less than half a bottle (which is my problem now). I've heard it's best on Dior NPs but doesn't play well with other brands. So I need a new top coat badly. Loubi has a base and top coat combo on Sephora but I was hesitant to splurge on it because I go through top coat rather quickly.
But anyway I was a total skeptic about the Louboutin NP line and I have now been converted. Some people disagree with me and have experienced poorer wear time though, so of course YMMV. But for me it's love.