A well written TUI, esp with keyboard shortcuts is a power multiplier. One of the biggest bus companies in my country used real terminals well into 2000s, and continued to use the same TUI inside a terminal emulator then.

It was efficient, bug free and fast after that many years of polish and refinement, it became one of the defining pillars of the experience. Imagine doing something and that thing can be reproduced reliably by muscle memory. You can trust that system.

Trading consoles are basically TUIs which can be driven with their specialized keyboards at great speeds and reproducibility, as well.