These strings sound great on a P-bass-type (G&L SB-2). Prominent, midrange-heavy sound, great for fingerstyle. They are more supple than regular strings, so it takes some adjustment. Once you adjust your technique, they work great.
Eventually, however, I found them too expensive for regular use. I found that the regular Ernie Ball or Daddario are good enough, and cheaper. But if you are finnicky and want supple roundwound strings, these are the ones to get. I might go back to them one day.