Three things set it apart.
First, it makes MPE universal: the Receiver module converts any non-MPE VST into an MPE-like instrument, and also works as an MPE MIDI router — each channel can go to a different layer, drum, external synth or modular system.
Second, it frees MPE data from the instrument. Through the MAP modules, poly-aftertouch, slide and poly pitchbend become ordinary Live parameters, so a finger gesture can drive sends, volume, effects — anything, on any device, MPE or not.
Third, on Push it stops being software. Gestures are played directly on the hardware, several at once, and seqMPEror becomes an instrument rather than a plugin.