See features on the home page of the synth. I would just add that the build quality is excellent and the Semblance of a serious face as opposed to something that serves as an illustration above.
Configuration is very simple and rather oriented live. All functions are accessed via the knobs (no digital interface), and modulation capabilities are effective. The manual is quite clear as long as one is familiar with these things.
Qénérale quality (especially) the sound is terrible (in the style Oberheim SEM), the analogue in this case has no equal for you to shiver. Aggressive bass that body, thunderous fx and percussive sounds larger than life (white noise).
Here, the Semblance is an instrument that has Corones, which is well what it was designed. There is no cleaning, except that it can put all sold off the shelf digital.