I'm a Sublime Text 2 user who tried switching to vim because everyone swears by it.
In the first few hours I realized I need to install a lot of plugins what essentially end up emulating GUI in the console. But later on in my (minimal) usage I just felt like I'm learning a different set of "commands", or keyboard shortcuts, than what already existed in Sublime Text 2. In fact, I missed Sublime Text 2 features like the ones that enabled me to "sneak peak" a file without opening it, auto-scroll to a function definition and auto-scroll back without losing my position and other niceties.
I'm sure I don't realize what features vim may have that Sublime Text 2 does not, that I don't know about. How do you use vim, what features am I missing?
 Without the overhead of changing modes for brief moments.