I have a small-ish Visual C++ project (Approx 300 classes) and I am finding the performance of Visual Studio 2010 way below that of VS 2008.
Doing simple things like "Go to definition" "Go to declaration" take a number of seconds whereas in 2008 they were pretty much instant.
As for the "View Call Hierarchy" I am fed up of seeing the "Please wait..." dialog. Again performance in 2008 was a LOT better.
I want to take advantage of some of the new C++ features but seriously considering going back to VS 2008.