I bought this in Wicked which is the perfect deep shade of burgundy. I couldn't be happier with the colour and the matte finish. It's exactly the shade I have been looking for.
As some have pointed out, application is very tricky at first. I found that I was initially getting a very patchy result but in time I got the technique under control.
I thought the staying power was good but not as great as I was expecting. Admittedly I have mostly worn it in party situations where a drink wasn't too far from my mouth most of the night. I have had a lot more success with it lasting well on a normal work day. Touch ups do require VERY careful application or you can get a noticeably uneven result.
That said, I'm so happy with the colour that I can handle the extra effort required to make this one look good.
I currently only have this product in "Red Velvet". It is the perfect true red and will match many skin times. It lasts for hours and stays true to colour.
It is highly pigmented and at first feels unusual during application, very wet. However, it dries very fast and creates a perfect classic lip.
Update: I bought the "pink velvet" version of this and although this a beautiful pink colour the formula is not as good as the "red velvet". Although the colour is much more wearable and suitable for everyday use, the formula lets it down.
Tips: If you've read that it's kiss proof - don't believe it. Be careful to only get the product on your lips of it can stain/ruin your foundation.