Our project uses ICE (http://www.zeroc.com) for some scalable computing and a large part of the system is indeed written in C++ (with bunch of other libraries). However, developing large scale application in C++ requires discipline even at smaller level (Should I use auto_ptr or shared_ptr? Should I pass by reference or by pointer? Macro or template? GCC does what?).

I have found C++ to be too complex to fit within my head. Even though I am programming almost exclusively in it for a while; I get a feeling that I am spending more time on placating the compiler than thinking about code.

For cross platform work that uses a lot of libraries I would not recommend C++. It is where my frustration stems from.