Llama is fairly logical. You have two main sections that you need to configure, area and events. An area is an area around a place, ie your home or work, that you will be going in and out of. An event is something that happens when a condition is met. For example, if you setup an area for when you are at home, you can set and event so that when you enter your home area, the WiFi turns on. You can then setup a separate event so when you leave the home area your WiFi turns off.
Does that help?