Like a previous reviewer said great hifi sound, and if you want a "upright-ish" tone look up a set of flatwounds.
I don't agree with the other reviewer that these strings are grabby. Unless your fingers can only tolerate TIs or D'Addario Chromes, these things are hardly grabby at all--worlds better than D'Addario Half-Rounds, many ground-wounds, GHS Brite Flats, and of course round wounds. And the price is nice. Try them!