I like their moisturizers. I am going to give their foundation another go. I'm not happy with mine currently and used to use tient idol and am going to re try that. Fwiw I think their eye shadows are horrible. They don't work well on me at all.
I'll buck the trend and say I love their shadows. They're very buttery and easily blendable. Aside from one or two "bright" colors, I haven't had any trouble with pigmentation and they have excellent staying power.
I do love several of their mascaras as well. Plus the eye makeup remover.
The blush I have from Lancome is just ok as are the lip products I've tried. And I've never been wowed by their skincare products.
I really like the Hypnose Drama mascara. I don't know if it's in stores yet but LancĂ´me is starting to do custom foundation labs where they mix up your perfect shade in store like the Bite Lip Lab. I would grab a bottle of that if available.