A fan of this since I was 12.
I've been going back to Xtreme Wear for about ten years now and I still love it. I've had lots of different shades over the years and they've all gone on smooth and stayed on for several days without chipping. Black Out is one of the best black nail polishes I've ever owned, and Night Lights is still my favorite glitter polish - it's a sheer dark gray with tiny holographic glitter. Looks great over dark colors!
Gunmetal is my most recent purchase, and it's thinner than the other colors I've had. I still really like it because even one thin layer looks really cool, so it's a great polish for layering with other colors. The color really does look like gunmetal - a very dark metallic gray with a blue tinge. I think I needed three layers to make my nails match the bottle.