Family Tree does have a very nice user interface. Adding individuals and connecting them to each other is performed in a very intuitive manner. You can attach photos of the individual as well as of any documents that need to be attached to the person. The program even includes some photo editing capabilities.
Family Tree handles many family relationships, including step-brothers and step-sisters. However, it always assumes that the parents are married (called a "matrimonial union" in the program).
Family Tree will create maps showing your family's geography and migration paths. It also allows the user to set reminders of data that needs to be entered in the future. It also creates charts and graphs in many formats, including .JPG. .PNG, .TIFF and .PDF files.
One of the better features is that Family Tree will synchronize your data to your iCloud account, making backups in the cloud easy and almost automatic. Your data will then be protected against hard drive crashes and other catastrophes that can cause problems for your computer. It also will import and export GEDCOM files.
Perhaps the biggest drawback I found is that there is no provision for source citations. That seems to be a strange omission as even most free genealogy programs of today include true source citation databases. To be sure, Family Tree does have a Notes field for every person and you can enter source citations in the notes. However, I wouldn't want to do that for every relative who appears in the 1940 census. If 50 relatives appear in that source, I'd have to enter the data 50 times! A better method is to have a true source citation database where I would need to enter the data once, then link the 50 relatives to that one source.
All in all, I found Family Tree to be an easy-to-use program that is a bit too elementary for serious genealogists.
If you are interested in possibly using Family Tree, I would suggest you first download the users manual at http://www.familytree-app.com/files/UserGuide.pdf and read it carefully to see if the program meets your needs. The users manual is available to everyone at no charge. You can also watch a video showing the program in operation at http://vimeo.com/60085666.
Family Tree requires OS X 10.7 or later and a 64-bit processor. It sells for $9.99 and is available in the Apple Macintosh App Store. You can learn more about Family Tree at http://www.familytree-app.com/.