I like that the application is powerful yet pretty lightweight compared to Adobe. The UI is pretty easy to navigate and there are a plethora of features that the software provides such as OCR, measuring, signing, file type conversions, and even batch processing. I use this application every day for work and the subscription model was painless with the perpetual license (which some other companies don't even offer). Customer service has always been very responsive even when I have had issues with billing or software. Installation was straightforward with pdf filetype associations being integrated easily. Review collected by and hosted on G2.com.
I've had issues before (which seem to be patched out now) where opening multiple files in a single open action would leave out a file or two from opening. This issue was further complicated by a progressive slowdown of the program when opening new files even when other files were closed (again, this seems to have been patched out). A small nitpick is that in Windows Explorer the file thumbnails sometimes don't show a preview image of the file contents. Review collected by and hosted on G2.com.