@IreScath I'm from Ask Mr. Robot. Happy to help if anyone has questions about the simulator (http://beta.askmrrobot.com). The mechanics are all really solid, and all artifact traits, set bonuses and legendaries are implemented. Some trinkets still need to be hand-coded in, those are coming soon.
The rotations are also getting some love this week. If you see a 'template' rotation, it means it's a basic start for you to play with and it needs optimization. If you see a 'default' rotation, that means you should get solid results, although it might not still be min/maxxed at this point in the beta.
Here's a video on using all aspects of the simulator. And this one is a short 5 min video on editing rotations.