I'm super sick today (I think it's the flu), but I already have some tip wear and wanted to take a pic before I took this off.
Although the name says "Copper," this is actually a pale pink holo, kind of on the peach side. I haven't tried Nfu-oh or the China Glaze OMG collection so I can't compare, but the holo effect on this is very strong. As with many holos, this was a bit difficult to work with. The formula was great, but it was hard to cover up bald spots. I used three coats here, but with better application you could get away with two. I think the key is just to use plenty of polish on the brush and to use as few strokes as possible, kind of like applying a matte polish. I did not use a base coat or top coat.
I hope I'm well enough to do my nails later, I really wanted to get started on some Valentine's Day manis!