These strings were the first replacement on my bass and the tone had a great improvement compared to the factory ones..
The sound is quiet balanced on frequencies, good punch, not too bright not even too dull. But, in my opinion they are a good choice if fat tone is what you are looking for. The strings are thick, ideal for slap. In the end the tone is awesome but this is a relatively cheap string set, in fact they don't last as long as I expected, they don't hold their "as new" tone very long.
An important feature to what I pay attention is the protective envelope which helps to avoid early corrosion.