Onesevenus...
Kudos, you asked yourself the single most important question:
So, in my mind, I am asking myself, are you ready to participate in funding a "12-24 month effort", that may lead to nice returns or wipe my investment to 0?
This is a rags/riches play and is still high risk, despite encouraging progress. As they say, investing isn't about the brain, it's about the stomach.
Best to you in making your decision.
regards