I bought this as a part of a set of gifts for a friend, and the first thing I noticed was that the colours are amazing. The darker colours in particular are so lovely and could easily work as a longer lasting lip colour on their own. They're very creamy and easy to apply, like a soft pastel. The definition is sharp, so you don't have to bother with using a brush to touch up areas or whatever. You can sharpen the nib if you want, but if you're a bit nifty and careful with using it, you can line your lips well without wasting any product. The only downside I can think of is that you have to make sure your lips are fully moisturised or that you add moisturiser (i.e. lip balm) on top of them because they have no moisture whatsoever and are quite drying. The liners last a good few hours (about 4, maybe 5) and are easily removed with a makeup remover. Decent find for the price!