I absolutely LOVE the sound of these strings.
There are a couple of negative things that I need to mention though:
-I've experienced premature breakage of the higher strings a bit too often. And when I say premature I mean when I bring the strings up to tension for the first time. I don't know if I've gotten a bad batch or something...??? I've never experienced this problem with any other strings. Sure, I've gotten an occasional bad string but with these Pyramids it has happened a little too often.
-I get more fret buzz with these strings. I guess this is partly because of the more flexible round core but I've experienced more or less the same with hex core Pyramids too. Whatever the reason, this means I need to keep the action slightly higher than with most other strings. The flexible, soft feel of the round cores make up for this to some extent but I'm not entirely happy about it.
-These strings intonate slightly differently than "modern" strings. To the point where they can't be intonated properly on many guitars. The worst ones seem to be guitars with slanted tune-o-matic (or similar) bridges. The wound strings end up being flat in the upper frets even with the saddles all the way forward. The sad truth is, I simply can't use these strings on many guitars.
I absolutely LOVE the SOUND of these strings though. They sound absolutely amazing! Unfortunately the things I've mentioned above makes them more or less useless to me and I won't buy them again.
I've tried other gauges of these strings too with similar results. It's such a shame because they really sound GREAT!
