These strings enjoy the endorsement of many well known artists. However, in my opinion they are overrated. The string durability is poor, both in terms of brightness (they tend to go dull rather soon) and actual string colour which has a tendency to turn a copper-like colour. As I said, they are overpriced for what they are. I used to use the EB Slinky strings in the past, when I wasn't as experienced a guitarist as I am now and even then I thought the strings' lifespan was rather short, even with regular cleaning. For their price they are okay strings, yet overpriced.