On the whole, I'm very happy. However, I've been a fluent vi-user for about 10 years, and as you presumably know, when something's a bit wrong, it's wrong, so:
If you use ^N or ^P to complete a word, repeat insertion goes horribly wrong:
If you have a text FooBar Foo
Press 'e' to get to the 'o' of the Foo.
Press a and then ^P to complete Foo to FooBar.
Now, in vi/vim, the inserted text is 'Bar' as an append. However, jvi for netbeans seems to think that the inserted text is 'FooBar', so a '.' command behaves more as 'iFooBar<esc>' rather than 'aBar<esc>'
Similarly, ^A in insert mode doesn't work for 'repeat previous insert'.
Similarly, ^X^N and ^X^P don't work.
I'll post more as I remember to make a note of them.
Congratulations on getting command-mode H, M and L to work in netbeans!
S.
VI/VIM have no action executed at INSERT MODE in netbeans.