I have my genealogy very well documented and I can attest I got near perfect results with it. Even a bit better than 23andme's, I would say. Even the haplogroups given were 1~2 sub-clades deeper.
From genealogy, my percentages should be:
- 62.5% Italian:
--- 37.5% North Italian (Lombardy, Veneto, close to the border with Emilia-Romagna)
--- 25% South Italian (Calabria, Naples and Molise, possibly distant Sicily)
- 37.5% Iberian (Andalusia, Murcia, Canary Islands)
And here are the results I got:
Attachment 143558
My sister got even more uncannily good results. Literally almost perfect according to genealogy, the only mistake was the Azores as a genetic group. Lazio was theoretically wrong too, but I will take it considering it is close to Naples. Hers:
Attachment 143559