Like most Joranalogue modules, this filter does more than just being a filter. Of course it can self-oscillate, and it can do several filter types at once.
But It can through-zero modulate both exponential and linear FM, as well as the resonance. And that at audio and sub-audio rate. So, if you want to filter your complex LFO, you can.
In self-oscillation it offers 8 phase-shifted sine waves, which can of course be frequency modulated and track pitch well.
Built quality is excellent.