i like the signature sound well enough but value it more for its tactile, morphing qualities. for me it's that approach to making music that acid tracks ushered in that's more important to carry forward, not so much the 303 itself. so newbuild is amazing but once you get to braindance people using it for classical melodies my appreciation fades.
non-acidic morph. not even remotely sounding like acid but in some senses a similar intensity, if not even more intense. give it a try