I am travelling on the cheapest ticket possible from HKG via DXB to CPH on a 777. A week ago I got a mail about equipment change to a 380. Should I then pay more because I get a superior product? No. I got the info I needed, and the product promised. I would not expect an compensation, even if it was from a 380 to 777 in economy. As long as dep and arr is the same.

However Emirates changed a flight 36 hours back, which gave me 40 hour layover in LOS without any compensation! That is a REAL problem.