Ranked in these QuestionsQuestion Ranking
Pro Free/Libre/Open Source
Pro Cross platform
Code::Blocks is available for both Windows and Linux, allowing you to use the same IDE across both OSes if you use different machines.
Pro Easy to use
Easy to pick up, for example much easier to include libraries.
Pro Debugger multi-threading support
The debugger supports multi-threaded processes for faster debugging.
Pro Lets you choose the compiler
Code:Blocks lets the developer choose which compiler to use, giving you a higher level of control for on your development workflow.
Con Poor code completion
The code completion for Code::Blocks is rather poor compared to other IDEs
Con It's hard to make the code readable
Due to the problems with indention, it's hard to make the code look nice.