I've seen swatches of the other colors, as well, and Caramel Solo caught my eye. For liquid, shiny colors, I personally prefer a color that's not too "in your face." However, I have found that I really like applying this lipstick over other colors to bump their intensity up a notch. One layering combo I love is to apply Scarlet Concerto on top of my Revlon Just Bitten Kissable Balm Stain in Romantic. The stain stays just well enough to lay down a great color foundation.
I would have to say that my only complaint about the product is that unless I do layer it over another product, it tends to settle in the fine lines on my lips. This is the reason why I typically avoid liquidy products. But, with reapplication and some good rubbing together of the lips, I can usually take care of that.
What are your thoughts on liquid lip colors? Do you have any favorites?