Yes, that's what he meant with VS not being efficient in that regard.

He said "VS does not have a shortcut to switch between files quickly". I'm having trouble thinking of a quicker way to switch files than pressing ctrl + tab.

I'm a long time emacs user and I work in Visual Studio a lot. VS does have pretty good integration with Perforce and other commercial scs, which presumably is what most of it's target audience needs.

Switching between files works best with Visual Assist added. Alt-Shift-o search string will get a list of matching files, and approximates emacs buffer switching.

Regarding the great IDE vs emacs/vim debate, I find using the IDE is best when working with code, and emacs for everything else. Occasionally I'll need to do something more complicated or that can be automated with an emacs macro and I edit the file there instead.