Access: MyHeritage did not permit access to the DNA section when my cousin
was visiting (Israel) from the US.

She had no problem accessing other databases.

Data: The data from Ancestry is probably larger, but not better. If a cousin
tests with one company and does not share the data with the one
you have accesses, they will not show up.

Autosomal testing is quit confusing. I have relatives
my sister, mother and father's brother do not. Many of the entries
are the fine, but there are a few dozen unique too each
of us, the same for another sister/sister test I know of. Yes,
I am listed as my mothers child and uncle/nephew of my uncle,
and sibling of my sister.

Downloading matches. MyHeratage has/had a way to download all your matches
as a spreadsheet file. Ancestry has no way to download data and since they
updated the way to review data, is very poor considering I have
a few hundred new matches every month and well over 5000 "4th cousins and
closer" and full access to 9 tests.

Dani