Pro: This is like wicked awesome. A 2MB zipped text file with all of my genes? Awesome.
Con: There are some privacy concerns, although both companies stress their commitment to privacy and all that.
Con: It costs $1000, which is a lot of money for a science experiment.
Pro: Did I mention it was wicked awesome? Think of all the interesting things I could learn!
Con: I'm a little bit of a hypochondriac and I can't imagine this would help.
Pro: In theory I could be on the lookout for warning signs for diseases I'm prone to. (but see "hypochondriac" above)
Con: Still, $1000.
So I think that's a "no" for now. Maybe when it gets a bit cheaper I'll revisit it.