It's a scam with a provably corrupt distribution and a laughably jumbled zombie-rex codebase, stolen from other projects. 
 
Stay away and don't even waste your precious time looking into it. 

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On the other hand, I'm hoping Sia will prove to be the exact opposite of that, but I'm hard to convince.  Still, I want to give it a fair shake and appraisal.  Thanks belong to one of your mods for visiting /r/monero (the home of our privacy-centric currency) and spending a few minutes pitching it to us: https://www.reddit.com/r/Monero/comments/45u6gs/what_other_cryptoprojects_should_we_be_taking/d00cczl