Yeah, lots of us have played around with it but I think there's only one or two guys who are actually proficient with it. It's not intuitive and uses things called nodes, which basically act as a function that happens to the terrain like raise it or lower it, erode it or erode it more, etc. It looks like a flow chart that you'd find in an office somewhere so it's kind of hard to get used to. But if you do get the hang of it, it does some pretty cool stuff.