I'm a bass player of 8 years and also an Audio Engineer. These are a Bass Player's dream!... very rarely need to be replaced.
They sound fantastic for both finger-picking and also ise with a pick. I have had better sounding strings in the past, but only marginally better.
The main thing I love about these strings though, is that they keep their great tone for a lot longer than other stings I have had previously (both coated and uncoated). I doubt that I'll ever buy anything else to be honest!
Plus they're black, which just looks awesome!