I've been after the piano-like bass tone for DECADES by now and these strings are the best I've found for it. Great bottom and tight and shimmering highs. The string separation when playing chords is great and they do last a good while. I also never had one break even though I strum very hard on them. In the beginning they have a "sharp" coating which I like, since that's when they sound the best to me, but I guess it can feel a bit rough on the fingers if you don't play very often.