Yes!
I had the "mis"fortune of picking up the wrong set(flats instead of rounds), and I've never been happier. There is less treble, and more warmth. And it doesn't have to sound like an upright, though it can if you want it to.
If you like the sound of flats theyre fine for fretted bass. Never could understand their appeal myself. But many like them.
__________________
life for its own carnal pleasure. Bass: Jackson JS3. Bass strings: Rotosound swing66. Guitars: BC Rich. Guitar strings: Daddario XL nickel. Zoom club#2. BC Rich club#26.