I'm still in the process of getting the string broken in like I like them, so it has definitely caused finger pains for the first few days

Ultimately, the high E broke, (other reviewers have mentioned strings breaking too).

It's fun to experiment, but these strings were so disappointing that I'm glad a string broke, to entice me to rid the guitar of them sooner!

t works great

Being a rather hard flatpicker (a habit I have a hard time breaking) over the course of 40 years, I used to break G and D strings 1-2 times during a 4 hour gig

The E string broke the very first turn of the peg!

I recently tried a set of Elixer Nonoweb Phosphor Bronze ($16!!!!....yikes), and they didn't sound nearly as good as the Martin SPs....at less than half the price