Very basic, monophonic, one oscillator and filter with only a cutoff knob, each with only an AR eg. No LFO or vol eg. There is a fun little arpeggiator, but that's really the best feature of this little thing. The sound is pretty good for such few features though. It's free, don't expect much. Now, here's the rub. This thing installs too much stuff for such a little vsti. What you install is Koblo's Tokyo Engine, which is the host for their bigger more advanced synths which cost probably too much ($595?). The way this works is you open up a link to Tokyo rather than the synth itself (like DirectConnect in Pro Tools), then you open Tokyo and its outputs are routed though the VSTi link. Too much hsasle. In Logic, I don't know about Cubase, Logic has to be the active program to transmit MIDI, which means you can't play your keyboard while Tokyo is active. Good thing they put a trigger switch on the synth so you can preview the sound. Get it, ok for simple bass and leads, not much else.Read Review