I'm a bit skeptical of the purported 95% of native IO performance. Especially, as in the mailing list thread, the maintainer claimed that it should already have been 95% on local storage, but that this latest version makes that applicable to large storage arrays as well.

https://plus.google.com/101344524535025574253/posts/Dbu4e6ff...

It will be very interesting to see the benchmark configurations and results.