I had a tree on Ancestry that had been there for many years, but I have done all my recent updates on MyHeritage. The MyHeritage tree was started from a GEDCOM export from ancestry.com.
I've been eagerly awaiting the TreeSync, and once it was available I pulled the ancestry.com down and imported a GEDCOM I'd exported from MyHeritage.
I'm fighting two problems.
First is the duplicate checking doesn't seem to work with any reliability. I know I'd have about 1500 duplicates when I imported and RootsMagic found only about 400 of them. The remainder I've had to find one at a time. Since I have 8100 people in the database this in not much fun.
Next is getting the tree back up on ancestry.com. I see the point of reviewing updates carefully, but I have about 6000 totally new people that it looks like I have to push up one at a time. Am I missing something?