Almost great
The Ancestry app works very well on my iPad Air2. You can do everything you need to do.
The "Almost great" is caused by the fact that the Ancestry app does not seamlessly share media with Ancestry 3 for Mac. Two share information between the two versions, you have to download EACH media file, then put it where it goes. This not only effects photos, but some vital documents.
Enjoy it. You just have to work around the media issue.
Pookanator about
Ancestry: Family History & DNA