I replaced my Fender bullets (which I had a poor experience with) with these strings. I had a slight increase in output and rediscovered a bit of sparkle (the Fenders were just a couple of weeks old and sounded flat and lifeless in comparison, before breaking of course!).
My Strat has been strung with these for a few months and yet there is still no corrosion to write home about, still I have a lively sound, and still they haven't snapped!
I play blues-rock/70's rock, etc, and can't find any real complaint, not regarding tone, output, construction quality, corrosion, nothing. Just good, no nonsense, solid strings which do the business. In the absence of any apparent fault, I can only give these the maximum rating.