Visual Studio 2013 is pretty quick off the blocks now. They've definitely made a bunch of improvements with initial load time and time to open non-trivial solutions. That and some tweaks they've made to the glyphy UI has made me fall in love with it again, especially running the out of box "Dark" theme.
Yeah, it starts up fast. But there are still pauses and freezes when it does certain things. I don't find them to be particularly less significant than pauses in Jetbrains' products (which also startup pretty quick here).
