Pros: Good accuracy.
Cons: Not at all suited for OCR'ing 'en-masse' as it will only process one page at a time - so with pdf's for example, you must manually select each page for processing.
The application-size is misleading - this is just a 'downloader', the main OCR is retrieved from the net when run.
It is still tiny in size compared to its commercial counterparts.
Other Thoughts: This really would be much better if it allowed entire pdf documents to be OCR'ed automatically.
BTW, it doesn't run on Linux Wine (with .NET 2.0 installed) Obviously not a 'Con' in the usual sense as it is a failing of Wine, not OCR 3.0 - more a FYI.