Interesting too is that it can be used for connecting to outboard gear playing your hardware synths with a string layout (have not tried this).
There is no tweakability of the synthesizer engine and it comes with some DX7 presets but can import more patches that there is a lot of or create your own with a DX7 app on Android.
There is however both bending and sliding of the strings plus that it can gauge how hard you are playing.
One thing that is maybe not intentional but that personally find cool is that it is very easy to get instability to the sound because of the bend/slide built in making it sound warbly in old tape/VHS way. Should check today when connecting if this also works connecting it to hardware!
There is a free version to try everything out first but it is pretty cheap for the full version.
Unfortunately the videos made does are not too exciting but post one in either case where you can see the built in function of learning songs from midi files that can be imported.