Yeah, I kept finding myself trying to use 'hjkl' like arrow keys, then when I went into insert mode I would have to move my hand back (and lose my train of thought). Basically, 'jkl;' feels more intuitive to me. Hardcore vim users will probably be aghast at remapping something as basic as cursor movement and say that I should "learn to do it right". But it makes more sense to me, and I haven't found it to be any less efficient.