A few things you might miss (for a little while) when you switch over to C::B from VS:
1. VS style document switching - using ctrl+tab to switch to the last document is a pretty nice feature.
2. Incremental builds - it seemed like VS was faster for compiling. This is more an issue with gcc, maybe.
3. Code completion - For now, C::B has a ways to go to fix this.
4. Low maintainence - Personally, I rarely had to work around a compiler/linker problem and experienced very few crashes. I am sure once RC3 is out, C::B will be the same, though.
5. Easy installation - If you are new, installing mingw, C::B, and wxWidgets can be a pain... but well worth it.
I can't think of anything else, atm. Honestly, it is worth using C::B over VS, even considering the above "problems". It is smaller, faster (the interface), cross-platform, extensible, non-bloated, FREE, and a number of other adjectives. After 5 years of using Visual Studio, C::B is a breath of fresh air.