Yeah, nothing to learn from this page. But I can not undo my upvote. I was hopping to see either a comparison of established services (Abbyy, Google Cloud Vision, OCR.space,...) or, even better, an insightful report from a Tesseract developer.
That would be very helpful.
Anecdotally, I found ABBYY to blow everything away, followed by the cloud provider services led by MSFT and then OSS stuff led by Tesseract.