The majority of your out-of-office emails will go to recipients with whom you communicate regularly. If you are sure that there’s a certain level of familiarity with all of the people that get your auto-reply messages, consider writing something about yourself, a funny note, or a joke. That allows them to develop a more personal relationship with you.
too short, though – most of the time you should give a date of return to set expectation (and so I don’t bug you again before you’re back)

I read it as coming from a person who was overly frustrated with their regular OOO being ignored. It’s one of my pet peeves – the OOO clearly says I’m not there and to contact Bob, yet the sender continues to reply, never contacts Bob, then blows up at me when I return that their work is delayed. I would love to be able to send something like this message in the letter but it wouldn’t fly at my office.
Education Details: An out of office message is a compact text that conveys the most important facts: How long you’ll be unreachable, when your contacts can expect an answer, (optionally) the reason for the absence, and, if necessary, a personal note. A referral to another email address, e.g. to one of your colleagues, is often helpful or even necessary.