vi-style editing is fast only if one can touch-type. If not, it is not faster. Its plus is the consistency of keybindings across platforms, but even then on international keyboard layouts it is not ideal (or just bad) and requires a lot of customization which may be highly non-trivial in vim modes for various IDEs.
So if one already uses vim, then sure vim-mode in IDE is nice to have, but if not, I suggest not to bother.
So if one already uses vim, then sure vim-mode in IDE is nice to have, but if not, I suggest not to bother.