I'm playing in a soul/funk band. And this is the synth i choose, to complete my stage piano. For basses, i still have a Moog Prodigy. I prefet it over the Mopho X4 for these kind of funky basses. But for brasses, stabs, pads, the X4 is really good.
It is much easier to be a good equipment purchaser than to be a great musician.