I have been using these on my Epiphone ES-339 to round out the sound even more when playing on higher strings solo, and give an even nice warm, and round sound to the chords when strumming or fingerpicking.
I play them as hybrid finger style, so the sound tends to come out even more rounder out of my setup.
Classic Daddario quality! would reccommend for anyone trying to use them for rhythm, warming up the higher strings, or in general if you prefer wounded G string.