I've had this concealer for over a month now, and I still don't 100% love it, but I'm getting there.
The coverage is spot on, I love the coverage but it does get a little build-upish (maybe creasy is a better word for it...) It seems like a foundation, and I'm not a big fan of foundation for exactly that reason. Maybe I'm using a little too much. I'm not sure.
When I first got it I thought it was a little heavy for a concealer, this is where I got the foundation-like feel. I got it in the lightest color, fair, and it matches very well with my skin. With my other concealer sometimes I feel as if it's a smidge too dark. I don't use a face primer at the moment so it currently lasts around three to four hours.
I haven't worn it much in humidity, but I don't think it would feel very nice after being in the sun all day. Humidity is make-ups worst enemy.
Pros: color, pigmentation, coverage
Cons: feels like foundation, build-up
Would I suggest this concealer to a friend? Absolutely. I really like it and, if I have to, I'll wait until its cooler outside to use it.