Are there any alternatives to using Apache POI Java for Microsoft Office?

Question

I discovered Apache POI for doing a lot with MS Office programmatically in Java, but its documentation leaves me wanting, as well as a few other things. Does a better alternative exist?

I thought to myself that OpenOffice.org might have something, but cannot find any concise site that would have a Library that would allow you to open and store Word, Powerpoint, Excel, or other MS Office applications through Java.

Do any better alternatives exist?