Review (3/5): Poor quality overall, but shiny and durable.
I've been using this for about a year. I can say 2 good things about it: it cures very shiny and lasts for weeks without losing the shine.
However, it has lot of tiny particles in it that get onto my nail and have to be swept away. At first I thought it was dust from the air or something like that, but it's not in any of my polishes, it is only in this top coat. I have noticed that it sometimes gives light/bright colors a smoky, purple-ish tint. It is simultaneously thick and runny, and not at all self-leveling. If you apply it thinly, you see lots of brush strokes even after curing. If you apply more heavily, it runs, slumps, and does not self-level. I would not purchase it again.