First, I must say its a very interesting ceature. The developers made a quite reasonable attemp to deliver the main philosophy behind the hardware arranger to the plug-ins universe. This thing detects the main 24 chords (majors and minors) and also enables me using my modest MIDI keyboard's knobs and buttons quite easily (midi learn on right mouse click) and that's the good part. The so-so part is the style creating section. Its very basic and a little outdated compared to modern DAW MIDI editors and lack some features you expect finding in a decent MIDI tool, like drag&drop, note darging, combo note editing, etc. but once you get use to it, things become fun. As an arranger performer (nowadays with korg pa-900) and a style programmer, I've already saw worse style programming methods so this one is far from perfection, but quite easy to use with a very gentle learning curve. I used 4 of the 6 instrument slots and started creating some styles and somehow forgot about the oppressive limitations, ones the playing part started. FUN. So, why I rated it 5 stars? Because the innovation itself worth it. For the first time in my live I used a DAW and some A-class vstis as an arranger organ with mixing abilities. The sound is unbeatable, even compared to 4000$ hardware arranger. and that's a staggering X-factor. Nevertheless, you'll need to find a MIDI keyboard with as many as possible MIDI cc buttons (which is rare, since MIDI buttons are not quite popular in the EDM market. manufacturers prefer pads and knob), So that might be a problem, since this plug-in is button hungry. But for most of the live tasks, 8-16 buttons will do the trick. Anyway, since its the very first attempt to bring the most complex format to the DAW (and considering the ridiculous price too), It does has it's extra value and it does deserve the compliments. I'm having some good time.