I really love the sound, feel and tension of these strings and I would have gladly given them 5 stars if it wasn't for bad quality control. Of the 4 strings, 3 of them (E, A, D) have uneven wounding. The A and D have a few kinks in the wounding and the E has a couple of portions of a few centimeters that are uneven and rougher to the touch. Quite an unpleasant surprise on an otherwise nicely smooth string. I really wanted to like them but I'm not sure I'll be buying GHS flats again after this experience. That really is too bad because, otherwise, they really are great sounding, feeling strings. Maybe I just got a bad batch.
As a conclusion, buy expecting imperfections.