I've used other oils in the past so I'm kind of familiar with them, and I prefer them over your typical moisturizer. I bought a full-size of this and you really do only need one pump. I don't love the pump though, I feel like it "leaks" out but I just make sure to wipe it with my finger and apply it gently to my undereyes. The pump is the reason for the 4 stars.
As for the oil itself, it is "heavier" than others. It doesn't absorb as quickly as other oils I've used either (at least to me). It says on the bottle it'll leave a dewy finish, which it does, so maybe that's why?? I use this in the morning and at night, and it works nicely with my morning sunscreen and my nightly retionol. I don't wear makeup much, so I can't comment on how it interacts with primer and foundation.
One really nice thing is I was breaking out before I started this (that time of month) and I felt it really helped tame my inflammation!
I prefer oils over moisturizer, although I'll switch it up to try new things. This is honestly a good one to try out! Good value for the price!