Note this does not apply to the Nanoweb strings which are but a poor imitation and not worth the money.
I never even considered 'coated' strings because I am such a tone snob, but since the search for great tone is endless I figured I'd give Elixir a try ( on the advice of Patrick Cummings from Brian Moore Guitars). Well, I'm really glad I did because these strings are warm, punchy, easy to bend and stay in tune incredibly well right from the very moment you put them on. All those things I love about them still hold true over a month later, these strings still sound and feel brand new. I now have Elixirs on almost all of my guitars (the Poly-web, NOT Nano-web). Give them a try, you won't regret it!
I used D'Addarios & Dunlops before these and the don't compare, although I never used the XLP D'Adarrios.
I would normally break an E or B string every couple of weeks, which was good because the strings were so dirty and rusty and dead sounding that I had to change them any way.
I love the sound of a new set of strings and these Elixirs keep that sound a lot longer and STAY CLEAN.