I am very happy with these strings! Some guitarists don't like that very new zing when putting on new strings but I do, and with these strings they stay bright longer. The Nanoweb is a less intrusive coating than the Polyweb. You are aware that they are coated compared to non-treated strings but to be honest, regular strings usually go very dull with my acidic sweat after just a few days so although these cost more they are way better value in the long term. The 3 for 2 packets make them even better value for money.