For reference, I'm an Elixir guy (Optiwebs, specifically). These are the closet you will get in terms of sound and feel from another brand. However, in the third set I bought, two of the strings broke really quick. I have never in 10 years broken an Elixir string. These do not seem as durable. They do still have a great tone (just a tad bit warmer than elixir), last long (almost as long as elixir) and fell great (would put them in-between Optiwebs and Nanowebs).
What I like much more about these, compares to Elixirs, is that they come in many more gauges. Still, I am hesitant to buy another set because of the string breakage. Especially since it was the thickest string.