I remember in my old job, we got some senior on one of the U++ projects. Very talented guy and great coder. Didn't want to use use TheIDE, but said he'll use it for a day or two to see what's the deal with the packages and learn the code and the move over to Visual Studio. Soon, he became very angry, cursing TheIDE. I asked what's wrong. He way very explicitly cursing it, saying what kind of an IDE does not have an "Open file" option. He just wanted to open a file to edit it and couldn't do it. I showed him that the option was "Edit file", not "Open file". He never touched TheIDE again, nor U++ or the project.