I agree with all of your points, and have had similar struggles. The lack of information and support to enable reliable clusters is incredibly frustrating and has me constantly evaluating alternative products. If you made any progress since posting (or even if not!), I'd love to chat some time. My email is josh@trendspek.com
I m also new to using Context Capture and I have to say that I'm struggling...if anyone has like a guide or some tipps on how to make the usage easier and more user friendly?
Please go to the Bentley Realty Modeling YouTube channel. On there you will find some useful start-up video tutorials
https://www.youtube.com/user/Acute3D