Not very reliable – 23andMe - DNA Testing Review

The basics of your dna are fairly accurate but it shows I’m Jewish, Spanish and Native American. My mother knows about every single one of our relatives down to the 1600s and not a single person is Jewish, nor Spanish or Native American. There is no way to flush out the genetic noise it shows which is quite frustrating.
Review by crazyduckguy on 23andMe - DNA Testing.