I've been using lambda labs' face detect api for a few weeks now. The API calls essentially return the same structured JSON as face.com which has been a huge plus (considering I'm using this as a face.com replacement and I didn't have to change much code to get my old code up and running).

Stephen (sabalaba) was nice enough to give me a sneak-peak of some of his team's upcoming facial recognition features. I can't speak to how the underlying algos compare to face.com's but their APIs have been accurate enough for my needs and they have some really cool ideas in development.