[rufugee]

I tried to like IdeaVim, but simple things like undo/redo were broken by the mix of vim and intellij shortcuts. When even the basics don't work...

[vlasovskikh]

This is a known problem. The multiple undo actions per single 'u' command bug has been fixed recently. The updated version of IdeaVim will be released soon. We have been working on making IdeaVim more stable, see the changelog https://github.com/JetBrains/ideavim/blob/master/CHANGES.md.

[rufugee]

Very glad to hear that. Thanks.

[JanezStupar]

You could try remapping shortcuts to your liking.

JetBrains products have awesome personalization capabilities.