I use these Elixir strings all the time. They are the only strings that I buy now. Either these or the other Nanoweb by Elixir. I switch back and forth between the two every few months. Ever since I've play Elixir strings I will never play anything else...well, unless something better comes along.
I can never get the full potential out of my guitar with any other brand of string. Not only do they last significantly longer than other brands I've used in the past, but they have much more tonal capabilities!
By far my favorite acoustic guitar strings. The price tag might be iffy for some, but totally worth every penny. The coating feels like it never wears off, it grows calluses quickly with a considerably less amount of pain.