These strings are a good compromise for slap/pizz players.
The provide a good bottom end, are really easy on the fingers and still can be heard without amplification. But after two years of intense slapping, they started to lose their tension so that the drop in tonal height during the decay actually became a problem. You have to change them when this happens, or you will be playing slightly out of tune, no matter how good your intonation happens to be.. but until then they are a good choice, unless you want to use a bow: then you should look elsewhere.