I watched Nicki Minaj's "Va Va Voom" music video the other day and it looked like in some of the parts of the video that she was wearing this lipstick! It doesn't look too bad on darker skintones.. I mean, she can pull it off because she's very bright with her style & makeup but for someone who's fair/olive skin toned (like me) I don't think I can. Lol.
You won't know untill you try. I have yellow undertones and I like St. Germain and Quite Cute, but I think the key is to pair them with the right blush and eye make up. Where it sort of goes bad is when the lippy has too much white pigment in it and gives the appearance that you put concealer on your lips. (or in the words of a funny lady here, like you smoked crack then ate a package of powdered donuts) I think fairer ladies have less of a problem with this, unless their lips are really pigmented. If it didn't look like "concealer lips" on Nicki, it probably won't be too bad on you. (Fleshpot looks like this on me, unflattering to say the least)
I am not a fan of having to use a lipgloss to make a lipstick work, but if you really want the product (its for a for a good cause), sometimes you can layer gloss on top and cancel out an unflattering tone--e.g. I like to layer a pink gloss over some of my nude lippies if they pull to orange on me but sometimes that is more work than I want to do (or if jacks up the finish) so I just wait for a color I do like that I don't have to mess with. I think we just have to wait for the bloggers to do some swatches on the lips to know before we try it. I am not sure layering any gloss over a lippy that has too much white pigmentation will fix it, so if I see lip swatches that look like concealer lips, I will know to skip this one, but I am trying to keep an open mind until I see those swatches.