I use it most often for taking pics of slides at conferences, which are usually taken at an angle. GeniusScan+ can crop the slide, even if distorted, resulting in a rectangle rather than a quadrangle. This can then be quickly tweeted out as a jpg, or can make a single multipage PDF of all the slides.
Also good for doing same with articles, contracts, recipes, etc. Sharpens text that is a bit blurry. Auto-exports to Dropbox, GoogleDrive, and many others.
After SimpleNote, this is one of most used documentation apps. Both are on my home screen.
(OCR with full text search would be nice addition.)
trumpetfire about Genius Scan Enterprise - PDF, v4.0.10