Basic Stuff is very easy and even advanced programming is possible, as the language is now able to use objects and classes and has a ton of free libraries and one of the most helpful and friendly communities on the Internet.

With a full programming language powering the hotkeys, including GUIs, it is powerful and flexible.

Can interact with any Windows program / dialog / form, filling fields, submitting data, etc., without dependency on the window placement.

You can reprogram any key combination, including the Windows key with a syntax like this one:

h::msgbox true

that automatically remaps the H key to show a message box.

AHK allows full scripts to be created and used, it is very flexible.