Does it do data deduplication? Doesn't sound like it to me from skimming that article.

Edit: sounds like EncFS has some significant security issues: http://sourceforge.net/p/encfs/mailman/message/31849549/. No recent information in that discussion, so I don't know whether it's all been resolved. Here's an HN discussion of the audit: https://news.ycombinator.com/item?id=7384730