Using these strings since long time and have never lost bright and warm sound.
Set on different electric basses, such as Epi Viola, Hamer Slammer, Fender Rascal, etc.
Warning, keep an eye on the length of your bass before buy them.
Depending on bass type, the sound is slightly different but kept a pitch, that many would call it 'vintage' in this time.
I prefer playing with a pick, but still with fingers the feeling is much more on bass tones.
Overall, what I love of these strings is the sensation of slipping way with my fingers on the neck. And I guess they have influenced my bass playing style.