Pros: Fast, easy to use and search, with lots of common combinations and turns of phrase not found in other dictionaries. Offline use is a big plus!
Cons: It seems that often the noun gender is not displayed (very annoying). Worse, the object case required by verbs and associated prepositions is also rarely shown! Finally, there doesnt seem to be a browse mode.
Unfortunately, because of the above issues, I only use this dictionary app as a supplement, not as a single "go to" app. Its a shame, as their online dictionary website is quite thorough and useful.