I have to say I was disappointed when I finally saw my own results yesterday. I was disappointed because we were told of the possibility of finding unknown information, or additional confirmation of our lineages. I learned nothing new personally.
The biggest problem I see so far is much of what is illustrated on the maps presented basically just shows migrations of your cousins. Not information about your own ancestors.
Here is an example of the information provided for my mother:
I would like to see subgroupings for my mother. The lack of subgroups means the information as it stands is useless. The area covered is too broad. Odd my mom doesn't have an Indiana subgroup because her ancestors were all in Indiana by the 1820's, and some before that even? Her father was born in Indiana too. The family had been living in the Jackson County area of Indiana for 80, and more, years before my grandfather was born.
My mother's communities reflects half of her ancestry. Her mother being Nicaraguan. Oddly my mother isn't in the Nicaraguan community?
The fact my mother's father had early American roots seemed to help with the quality of her genetic community results. My results only cover a very small slice of my Ancestry. This presents a problems for adoptees and others who know very little about their heritage. They might assume the map shows all places of origin of their ancestors, or at least a significant portion. My communities reflect about 20% of my heritage. So 80% of my ancestral heritage isn't shown.
Here is what I got:
The genetic community results are correct for my mother and I. However all of our ancestry isn't represented. In my case only a very small fraction. The cautions when looking at these results are they reflect migrations of cousins, and may represent as little as 1/8 of your heritage. After seeing these maps myself I felt more of a connection with the two regions than I really have lol.
It's hoped with more testers the results will get better? I think this will always be a better tool for some than others. There will always be groups underrepresented since everyone in the world won't test with AncestryDNA. It may get much better for those with a great deal of early American ancestry, because that group tends to test more.