The first thing I look for in 5-string sets is that the low B string has a strong fundamental, and that the volume difference between it and the other four strings is not too great.
These strings deliver that without venturing into the higher-end ?50-100 set. I can't tell any difference in the balance of the B string outside of studio recordings, which a tiny bit of compression will easily handle.
Sound-wise they are springy with an aggressive tone, but not the warmest strings going.
Oh, they last ages too! I've had the same set on my main bass for maybe two months of heavy use, and though they've lost some shine, they're still quite springy!
I have tried many different string sets, at every different price point, and haven't found a better quality: price ratio than these.
These are the perfect solution when you need that new string sound, without spending ?1000s a year on strings.