Assuming that you're asking about Matt Johnson's release.
Really easy?
Rather subjective as a question 'eh?.
Regardless, it's easy to learn and perform.
Based on your other posts, you're eager to learn a 'prediction' effect. There are many available.
Some easier than others.
Check out "Perfect Open Prediction" by Boris Wild. It's really easy. If it's out of stock here, just do a quick search on Google to find it.
Or, go to Boris' site directly.