I use Visual Studio to wrangle giant enterprisey C# applications, but I still use find+grep/Emacs for browsing code quickly. Visual Studio is a long way off from matching the simple blazing speed of grep and file buffers in Emacs.
P.S. I'm not sure why I'm being downvoted. It's what I do. There's really no debate about whether grep is faster than VS search.
VS mimics both to an extent by allowing you to search with regular expressions and to choose to search from a file system context instead of project context. My favorite thing about this is I also use viemu, and I can search VS's search results using vi commands.
P.S. I'm not sure why I'm being downvoted. It's what I do. There's really no debate about whether grep is faster than VS search.