My biggest concern / point of skepticism is that they are developing their own engine. I don't even see the point of doing that, but then I know nothing about engines. But that's a huge risk. It sounds like they don't even have a working engine yet, yet they have ambitious goals about creating a flying prototype soon? And there's no way they'll meet their price target, but if the experimental version costs no more than a Bell 505 and it actually works as well as they hope, then it should sell. Of course sales would be limited to the private market, at least in countries that prohibit commercial operations in experimentals.