Using CXXI ​​to port C ++ libraries

My company is looking for CXXI ​​to create C # bindings for C ++ libraries that will be used on Linux Mono. The main reason is the ease of use and the simple look of the binding code. The main problem with CXXI ​​is that it is not completed, does not have documentation, does not even compile in Ubuntu 12.04, and after compiling it, tests and examples do not run ........

I know that using Swig or creating bindings manually is probably better than using CXXI ​​at this point. I'm just wondering if anyone has experience using CXXI ​​and you can share your knowledge before I give up CXXI ​​and move on.