The article writes that "F Secure will not stop a proper investigation from the authorities. But it has done its level best to make sure your content cannot be combed and picked up by intelligence agencies or advertisers, without your knowledge or through illegal means, and promises that everything from the thumbnail to the content itself and the metadata is all encrypted."
I'm not entirely sure how to reconcile these two statements. Perhaps everything is encrypted, but they have access to your key (Similar to Lavabit) ?
Alternatively, they might only be referring to delivering metadata to 'authorities'.
I'm not sure where their niche is - People who sorta-kinda want things private, but not enough to use a serverless solution such as http://www.filetransporter.com/ ?