Have only had this app for about 2 months and have only scanned a dozen or so items. Thus far, the quality is outstanding and functionality far surpassed my expectations. I cant think of a downside. SmileSoftware may have raised the bar so high they might have a difficult time finding a way to upgrade or update their own product; it appears to be that good.
Ken Bagby about PDFpen Scan+ with OCR, PDF text export