The UI can be a bit tedious but it is intuitive, with a bit of training and exploration you should be able build anything you have in mind. Enhancing community layout can also help, for example I usually map back buttons to joystick buttons because it would hurt my thumbs.
If you want a fun thing to start exploring, I'd suggest touch and radial menus. They are a pretty unique feature and it's pretty easy to make them useful on games with keyboard shortcuts mapped to some settings.