Well I just downloaded it on my test machine, I'll play with it a little bit - although I'll say this: As someone who used to fix computers as a technician, there was a saying: "If it ain't broke, don't fix it" meaning if you have something that already works, you don't have to replace/re-vamp things.
Edit: Hmmm, Netbeans has a larger install size, feels like it has a little commercial bloat that CB doesn't, set off my antivirus which thinks a trojan is in the install which might or might not be a false alarm, and didn't detect my MinGW folder. Then again, I'm not an expert in programming IDE's so I can't really review it and I admit I may be very wrong, but personally, just myself I'll stick with CodeBlocks.