Gaia allows you to take complete control of the design of your terrain and pack in as many details as you like. You can stamp out environments using the stamps provided, or load in your own. In Gaia, there is an inspector option for virtually every possible setting, so it may take you some time to fully wrap your mind around it. But, for those of you just wanting to crank out a beautiful and unique environment, fret not, as Gaia comes with an entire suite of automation and randomization tools which can procedurally create your terrain/environment for you.

I think that Adam did a good job of documenting the features and keeping the examples simple and digestible. He introduces you to some basic concepts early on which bolster your foundation in Gaia learning. Once you have a grasp on these foundational concepts, you find yourself building your own terrains in hardly any time at all.