I received my preliminary 23andMe DNA results on Tuesday and boy are they fascinating!
Some of the ancestry information is still populating, but so far I think this is a really neat and comprehensive service. I know some people aren't interested in the health information but I have really enjoyed reading through it. I found some things that were a surprise and some things that weren't (more detail on this later).
As far as what I can see about ancestry at this point my results from AncestryDNA and 23andMe are very similar!