If my understanding is correct, this needs Kontact to run. If so, it's useless to me, since first of all I hate Kontact and I will not touch it anymore even with a 10' stick (do you have a standalone instance, like Pianoteq does?) and second, to be useful for me it must run on Linux, which has remained my platform of choice after venturing on Mac and Windows for a while: I simply find non-Linux OSes too cumbersome, heavy and error prone.
So if it does run standalone and on Linux, I'd be interested to giving it a try and it gets some free Karma Points just by these characteristics even before I download it. If it runs on a DAW (such as Reaper or Carla) in Linux, I may still be interested in trying it, but I find DAWs too complicated for my use case (simply playing a piano live and not messing up with making electronic music), so no I'll try it, but no Karma Points ;-)
In either case, I agree with @navindra that the market is already overcrowded and to stand out you really have to be more-than-excellent under all points of view, and even then you'll suffer some criticism (see e.g. Pianoteq, just to sound like a broken record and see also @CyberGene comment appeared just a moment before I push "send"). But I wish you best of luck in your endeavor!
