I haven't tried these on yet since I just got them. I saw them at CVS for buy one get one 1/2 price and had to pick up a couple to see if I like it. I'm going to swatch them on some fake nails tonight to see how it turns out since the sale is over tomorrow.
I got Cyberspace (blue) and Digital (pink) since I can't really go wrong with those colors, I love light blue and I love most non-bright/neon shades of pink. I was also eying HD (silver) and Hi-Res (purple) so if they look as pretty in person as they do in the swatches I've seen I'll get those 2.
EDIT: Swatches of Digital and Cyberspace in artificial light.