Yes - and frustration. Breaking cycles with weak references and so forth. But on the plus side, once you know this stuff well modern C++ makes so much more sense.
Can you give some examples of "this stuff"? As a recent entrant to the world of C++ I would be curious to hear those areas I should investigate to get to that point. You mentioned breaking cycles with weak references so it is it mostly understanding how C object model is implemented and/or anything else? Any resources or book you found helpful to find that enlightenment? Cheers.