I really enjoy playing slap, and would consider myself moderately proficient, but almost never use it in a band context. Funny enough I often don't enjoy listening to it, which often makes me pause before deciding to inflict it on unwitting listeners! For me a big part of whether I will enjoy listening to it is the bass tone (which impacts how the style sits in the mix, I prefer a thicker, more even tone) and of course the line itself. I hasten to say taste as it's so subjective, but there are certain approaches to the style I find more palatable. I could listen to Bobby Vega play slap all day, for example (granted that's hardly what he's renowned for). But then I guess the same could be said of any technique - as been repeated on here many times before - it's not what you've got, it's how you choose to use it.