I did try to live without it. After all the Jupiter-Xm is a much better product, with proper hardware implementation, using the Zen engine which id the future, slightly better keybed, bigger display, much broader range of sounds and some proper amount of RAM memory. The JD-Xi feels like a game compared to all these issues. After the last update of the Jupiter-Xm firmware the internal sequencer became usable, erasing the only point where the JD-Xi was better in.
But the existing sounds on the JD-Xi are great and can cover the techno side of my sound pallet and if used careful the internal sequencer is still an asset to use. So I use it again to create three extra synth layers, usually rhythmical patterns with pan and/or delay effects, often using just the Root note, allowing nice texturing of different parts. At this moment I mute/unmute them manually, as the MIDI implementation of the JD-Xi is rather poor. The latest of my new Tracks is using these layers: “DUCAs-GO” .
In the future I intent to implement real time risers and droppers to improve my transitions in my live rig during performing/recording.