I love what this app has let me do -- I use it more than any other app on my Mac at the moment. At first the interface felt a bit complicated, but once you get the hang of it it feels quite natural and fast. You will want to read the manual once you get beyond the basics.
Like the last reviewer, I continue to hope for better graphics. They are decent, but not always functional. For example, long text (e.g. baptismal locations) are cut off even when there is a ton of room on the page to expand the box. It's very frustrating because there is absolutely nothing you can do about it. With OS X's graphical abilities, it seems strange that this limitation persists.
The addition of the tree chart in 6.2 is quite nice though I wish the connecting lines were darker or customizable (e.g. make them dotted, dashed, etc).
Overall a very nice app and I feel like I got my money's worth. Let's hope development continues! The developers seem dedicated and helpful, though the one time I did email a feature request they indicated it was already available -- but did not explain where. I was reluctant to ask again so I let it slide...but does anyone know how to make the fan chart blood relatives only?