I have been using these strings for one of my basses for years. They have a nice bright sound with a good mid-range presence, making them very useful for cutting through a mix.
The low-end suffers slightly for this, but this isn't a major concern for my purposes, as my bass requires a bit of taming in this range anyway.
I will continue to use these I imagine, due to their affordability and quality, and the fact that they last well too!