Personally, I think out-of-the-box comparisons are fairly useless, because anyone who doesn't tune their database probably doesn't have enough data to make a difference.

I have no opinions either way on your product, but have you tried benchmarking against an out-of-the-box MySQL installed entirely on a ramdisk, so that it doesn't touch disk at all as well? That would make the comparisons more valid, since both installations wouldn't touch a physical disk.