We travelled on a 6 hour flight from Birmingham to Ho Chi Minh City (and return flight from Hanoi) via Dubai.
The Boeing 777 we travelled to Dubai on was superb. Emirates staff are great and the ICE entertainment system has something for everyone to keep them amused.
We were on a transfer flight so I am always a little worried about baggage arriving at the other end, but I did not need to worry.
On-line check-in recommended to avoid the queues.