For last few years I've been using these strings because they are the cheapest out of balanced strings sets (I don't get it why this isn't the standard yet, I guess guitar players are really stuck in the past and buy things out of belief)
The most problematic of standard sets is the A string and this really solves the problem.
As for the longevity, they aren't gonna last as long as Elixirs but it's a really solid set of strings, that's why it's only a 4star, but it's a solid 4