I use the newest version (Alexandria) of C++ Builder everyday in my job since other developers in the company have legacy software from the 90s.

You can't really open old projects in new versions of the software. Some devs use VMs to develop on the old versions of Builder.

The documentation and the example code for the C++ side are horrible, because they are focused on Delphi. You must know Delphi to figure out how to use the libraries in C++. The documentation for Delphi also feels very light and outdated. The latest books about it are from the begining of the 2000s and there are very few Youtube videos about it.

Sometimes Intellisense stops working and you don't know why. Sometimes some access violation happens and the debugger gives you no hint why.

The price is also expensive. I think my company spent 2300€ for a single license and they expect you to renew every year.