I've splurged on the Chanel Soleil Tan Bronzing Makeup Base after watching the Chapman sisters aka Pixiwoo and DRBrooklyn in YT videos in which they were using it and/or raving about it. But I got the best use of the product after I watched Lisa Eldridge's one (link => http://www.youtube.com/watch?v=zFz5diZd8hU ).
I love this product. Love its consistency and its scent. It's about one or two shades darker than my skintone (MAC NC40/MUFE HD 128) so I can use it for contouring (though I find it a bit orangey for that puprpose) but by using Lisa's method of application, it really brightens my complexion ( => swirl a kabuki brush into the cream and put most of it on the back of the hand to sheer it out, before actually using it on your face). In the morning, I look very ashy, with a dead-like face (no kidding here, it's that bad!!) but the Soleil Tan gives me a beautiful glow without any shimmer, which I really like.
I sometimes use it in place of my foundation and mix my concealer with what's left of product on the back of my hand to get a perfect color match. A touch of blush to complete and I look as if my complexion is naturally good (which is not the case of course).
At 37.50€, this is not a cheap, but since you really get a lot of product - which will last you a long time - I don't think it's *that* expensive at the end. I've been using this regularly for 6 months now, and I'm still far from reaching the half of it.