Yes, I feel similar. I've tried way too many vim 'emulators', and the only other one which comes close to that 'vim' feeling is XVim for XCode. However, neither that one, nor all the others feel as easily extendable (with the exception of Vico, a native Mac vim clone that uses Nu (a cocoa lisp) for extension, but Vico even though it's easily extendable lacks a ton of vim commands)