Thankfully Oatmel has gotten just about its first 500 users. So far for marketing - it's been word of mouth, posting on ProductHunt, Twitter, Linkedin. and texting/emailing everyone I know.
It's been about 12 days since launching.
Signups are nice, but the real metric I have to pay attention to now is how many users are actually engaged. There is a really long way to go, but it feels great so far to see that folks like the whole idea of "AB testing your life"