Smooth, slick, clean, with sharp points - love them. Because they're so slick, I find the tension comes up slightly tighter and very even (I usually knit with wooden DPNs but anything below 3mm is just too breakable). Great set, really pleased with them.
If you like metal needles and need a complete set of DPNs then you should give these a try. They are nice and slick (though some people see this as a disadvantage) so there's no trouble with bunching of stitches, they feel nice in the hands and have lovely sharp points so all those K2togs and SSKs are no trouble to execute.