That Acrobat XI in some ways is more powerful, especially in the conversion of documents / pixels for professional print data is for me beyond question. But it is cheaper also order up some nuance.
However, as regards the general work regarding PDF conversions, there is nuance - as far as I needed it until now and applied - Acrobat in every way, on the contrary, Nuance surprised with one, easy to understand in all respects work ambiance and, Acrobat peers embedding its functions in the daily PC use.
In addition, Nuance works without complications and stable, and thus is resistant to even though deeper meshing with the system, ideally with the Windows 7 world and the useful add-ons.
For me always a great and clear program that ... see the application examples in the product description ... many, if not covering most of the features of Acrobat.