The first time I wore this, I wore it under makeup and it was the perfect base. No pilling, and the foundation just glides on. I had a glow from beneath my foundation even though my makeup was heavy and full coverage. This stuff is the perfect base for makeup. It's also helped me with:
Hyperpigmentation: I've had a few small stubborn hyperpigmentation spots that I figured would just be around for a while and take time to fade. My overall complexion is already more even.
Texture: I also had a little bit of texture/bumps on my forehead that I figured just required more exfoliation. They're gone now haha. I didn't realize a moisturizer could do that, as I was under the impression this was probably due to a lack of exfoliation.
The price. But given how picky I am about moisturizers, willing to shell out for this!