Moinmoin,
What lead me to DSI synths (P'08, in my case)...
I played a Rhodes in school band (this was strictly private then) late 70s, went to a larger city to study (electrical engineering) and had a band with a bad bass player. So I switched to bass, which I still play and practice a lot. Kept keyboards (Rhodes, monophonic synth, cheap Organ) for fun and occasional use.
Physics in combination with upper cutoff of human ear dictate, that the lower the pitch, the more overtones fit into human hearing. This forces
every bass player who is not def into looking for "the sound" more than fiddling (which remains for the people with lighter strings, SCNR).
Playing bass for some 30+ years, I reached a kind of mental and technical border and took lessons with Peter Sonntag, who to my luck lives in the same city. Taking lessons, talking about music, sound, and our personal experience with music, I mentioned especially analogue, monophonic synthesizers as a very suitable tool to explore everything regarding sound within a kind of "toolbox".
This lead to a spontaneous session during a private party at Peter's home, where You can find everything You may want in order to make music, be it recording or playing in front of ~50 people.
I played nothing but an old Transcendent 2000, 70s monophonic synth with even only one single VCO, but some very handy gizmos.
The decision to go on with Peter and his group found me looking for a tool, that could do everything a "normal" analogue synth can do plus things like saving and recalling patches, being prepared for highly improvisational context from modern jazz to some metal things, ...
The P'08 was the only thing I found suitable regarding specifications. After trying one, "war die Messe gelesen" (German idiom for very definite decision, literally "the holy mass was read/performed")
I am not that much into classical lead sounds and fast keyboard action, but in being that guy, who cares for the melting of different instruments into "band sound" by providing some kind of "overtone-glue". Sorry for these imperfect words, but I cannot write it in words better.
I am still very happy with it, in order to further enhance its sounds I use a Moogerfooger MIDI-MuRF, sometimes a cheap reverb, that's quite it. As both effects are mono, I route them through a mixer taking banks A and B as separate streo inputs (and an organ, and my old Transcendent 2009, and sometimes even a string machine).
I think I will use the P'08 until I stop making music and sounds, which will be as close to the day I'll die I can get with it...
Of course I still play and practice the bass quite a lot, which is why I stop here and get back to it

Martin