I really dig my BSW for a number of things; the envelope filter and the octaver mostly. The synth settings can be a little outlandish at times but if you can find a way to work them into a performance than more power to you. Personally, I really dig the synth settings, but then again I am in a slightly experimental band that gives me the freedom to use crazy effects like that.
Even within the confines of a normal band, one can use the synths for an intro a breakdown or whatever. I don't really use the envelope filter much anymore since I added a Q-Tron to my board but it is a solid filter if I can remember right. The number seven setting OctaSub can be tweaked to provide probably one of the best tracking octavers out there. All in all it is worth the $70-$80 that you pay for it new.
