> Simple things that people like reasoning about and visualizing with printf() statements can be done in a debugger more easily after using your brain and logic

> Simple things that people like reasoning about and visualizing with printf() statements can be done in a debugger more easily after using your brain and logic to think about what the issue might be. A big problem that tends to make me sometimes not use debuggers, is that for relatively large software split in many DLLs, adding a printf & rebuilding takes a few seconds, while loading it in gdb or lldb is sometimes north of a minute (or, from my experience with MSVC's "symbol loading", sometimes fifteen minutes).