I am comfortable with medical/biotech pr's.Sometimes it's not what they say but what they don't say. Also "reading between the lines". That takes time to get a feel for.
However, investing in a technology that one is not familiar with like a computer tech.co and I am in the same boat.
I may like the concept and the mgt.and the fundamentals etc.but understanding their technical pr's puts me in the same position as some here.