Dr Böse has posted his view on the IT failure:

https://www.drboese.de/blog/15-02-20...-als-fluggast/

"Whether you are entitled to compensation of €250-600.00 per person depends on whether Lufthansa can successfully invoke extraordinary circumstances. I think that's doubtful, based on the information available so far."

He refers to a BGH case where the Court held an IT failure at check-in was not the fault of the airline and compensation was not payable. The Court did state the carrier should take all reasonable countermeasures and therein is the question, has LH done so?

I do like his advice about getting a hotel from LH:

"If LH does not provide these services, you can procure these services yourself and request reimbursement after setting a deadline of e.g. 30 minutes to [email protected]."