It is initially pretty straight forward and intuitive. You can select 'Open' to open an existing gedcom, or you can click on 'New' and start a new tree. When you open it, it will have a blank work space with options along the toolbar at the top. The creator of Ahnenblatt continues to update it, with the lately version 2.83 being last updated October 16, 2014.

Though this software is created by a German, it is available in English (as well as many other languages too) and 'Ahnentafel' is the word used even in English genealogy for a report which lists one's ancestors (the opposite of a descendant report which lists one's descendants). The prefix 'Ahnen' comes from the German word 'Ahnentafel' which basically means 'Ancestor chart'. If you're not interested in reading my full review, scroll down the bottom where I list the pros and cons, give a conclusion summary, and a rating.

I will work in alphabetical order and include lesser known software. I thought it might be beneficial if I were to review them each. Many newcomers to genealogy don't yet want to spend money on a family tree program, which is understandable, so they want to know which free software is the best.