It's actually pretty good - usually the reason it's not accurate is because enough data isn't being fed to the simulator. That's one of the things that was great about doing it in SI - it wasn't hard to get the data in to the simulator.
But if I was AWS, I would also say you should check your IAM against the real world, because if you don't, it's pretty easy to wreck you environment. ;)
But if I was AWS, I would also say you should check your IAM against the real world, because if you don't, it's pretty easy to wreck you environment. ;)