Deciding to purchase some genealogy software to be organized, and owning a Mac, in early July I walked into a local Mac Store and purchased MacFamilyTree. The only significant complaints I had seen online were some oddities in the GUI. Functionally it was rated highly.
[I know that the leading software packages are Legacy and Family Tree Maker, but both of these appear to be PC only, and while I could buy software that would allow me to run PC programs on my Mac, that would be an additional cost, and would in my opinion be wasteful if all I wanted it for was one software program.]
So far I have had few issues. Of course, I have nothing to compare it to. They've just announced an upcoming major overhaul, though, and the 'cutoff' for a free update when the release comes is an August 14th purchase. Grumble grumble. I do understand, though, the cutoff has to be somewhere.