I wonder which is the most accurate DNA testing? (Thinking of those triplets and their results.) Well, and the most specific? The one I used a while back was very general, a disappointment.
Having done a couple different ones for adoption reunification purposes, I would recommend at least AncestryDNA over 23&Me, as it had access to a much larger database and offers more genetic information. Having said that, I've met family that only did 23&me, so if you can afford to do 2 or 3 or 4 of the primary tests, its worth your time. After you do so, I highly recommend downloading your results from each test onto GEDMatch if you're trying to find family connections...