Very easy to use (you have to apply a bit, for sure, but the result is very satisfactory), everything works perfectly, the drying time is fast and you can attack directly after manual tasks, it holds :) Only downside: providing a solvent with acetone to remove the varnish. And I misjudged color, finally too bright red for my taste. Nevermind, I threw all my polish "normal" and will buy me a bunch of semi-permanent color!)