Has anyone here played with Lucy? I'm looking to move some code from ElasticSearch to something, and still haven't decided on what. Sphinx looks promising, but

Has anyone here played with Lucy? I'm looking to move some code from ElasticSearch to something, and still haven't decided on what. Sphinx looks promising, but their model for adding documents isn't my favorite. It makes integration with ElasticSearch seem trivial. Something like Lucy might be a really good middle ground.