I use Reunion. Have heard mostly not good stuff on the New Family Tree Maker, I went with Reunion because it has been around a while and has a good track record, I considered waiting for the new FTM, but from what I hear form a few friends in my MAC users group there are linking problems between people, losing people and lost sourcing data. This is just my opinion, but I am glad I am with Reunion. Didn't much like FTM when I used it prior to MAC purchase, and was about to go to something else anyway.