It's still closed source. The bit depth of the security is unknown. It doesn't look like they have solved the problem of bloat.
But don't worry, SDC will suffer from all these same drawbacks. zk-snarks are expensive no matter how you slice it.
If zerovert didn't screw up royally here, then SDC is beat.
I guess Longandshort will be up for a few days doing crystal meth & whipping himself into a frenzy again. LOL!