Nothing, to my knoweldge.  I&#x27;ve had a subscription to Ancestry.com for almost two years and have found it amazingly useful.  I&#x27;ve learned far more about my ancestors than is known from oral family history.  The subscription is pricey, but their service is amazing.<p>That said, I suspect Ancestry.com is much less useful for those living outside the United States.  In particular, having ancestors who lived in the country at least 72 years prior to the most recent US Census is what makes Ancestry.com most compelling.  That&#x27;s when census records on individual people become available, as outlined at <a href="https:&#x2F;&#x2F;www.census.gov&#x2F;history&#x2F;www&#x2F;genealogy&#x2F;decennial_census_records&#x2F;the_72_year_rule_1.html" rel="nofollow">https:&#x2F;&#x2F;www.census.gov&#x2F;history&#x2F;www&#x2F;genealogy&#x2F;decennial_censu...</a>.  Ancestry.com has done high-resolution scans of all US Census records and parsed them with decently accurate OCR, so you can plug in a (likely deceased) ancestor&#x27;s name and get their street address, age, occupation, rent&#x2F;mortgage, those living in the household with them, etc.<p>I have also not tried their AncestryDNA product, and probably will not.  If I were to try direct-to-consumer (DTC) genetic testing, I&#x27;d probably use 23andme.