I got the alternate set, these are quite high quality strings, nice overtones and beautiful smooth sound that's definitely more mellow but still incredibly ringing and vibrant. Their playability is a little strange; they gain a slight grittiness (not crunchy, just an off vibration) in the initial stroke response as they get older, but its not really that noticeable. The platinum e is also quite superb, although again the response might not be quite as good as it gets used, however it is better in comparison to many other strings. Highly recommend.