Excellent viewer
Althought editing is possible, this application is best suited for viewing trees. It synchronizes very well with the data stored on the Ancestry site. To make it better, it would need to be able to look at another window while seeing the tree. Finaly, it would also be nice if reports could be trigered from pointing at one person on the tree.
Gmarin about
Ancestry: Family History & DNA, v7.5.1