I used C++Builder at a previous job. All their software was C++/VCL, they were completely locked in. Embarcadero tried to keep up with the evolving C++ standard

I used C++Builder at a previous job. All their software was C++/VCL, they were completely locked in. Embarcadero tried to keep up with the evolving C++ standard and on paper they were moderately successful, but if you actually tried to program in a modern style, it all fell down. E.g. you'd find an object's destructor was ignored, or even worse, run twice. I think I reported about two dozen compiler or C/C++ library bugs.