S5 should be better built(look at ns6) No endless clicking encoders for gain but traditonal gain . 4 programble encoders which users can chose to use how they feel(like it could be used as 4rd eq or sample slot..)in 2 bank (the 4 can change to another function by pushing an single knob) key encoders or ablity to change efx encoders to key or simply put it as an efx! zoom in/out scroll! abilty 2 beatgrid from s5! xlr and monitor out. 1 channel real mixer so incase of crash sound from external would go through. bigger platter . real level indicators that are accurate!