[simne]

I said, beware of give access to internals of your technology. Because, this is your value NOW. Later, when you will have many customers, they will be additional part of value.

Sure, you should decide yourself, to whom you could trust, but for me now, all looks too clear - they just want to assimilate your technology, or if lucky, assimilate all your command with technology. I cannot decide, if this is good for you from what I know now.