The airport seems to be very big and also clean. The most interesting thing I felt about Dubai airport is that electric train is used to travel from one point of airport to other which saves great time and energy.The security in Dubai airport is much strict so there is no chance of mischief. The infrastructure of the airport is not much interesting which disappointed me. I can surely say that infrastructure of Indian international airport is better than Dubai airport. In terms of facility Dubai airport is excellent. If you buy anything from Dubai than I prefer to buy it from Dubai airport because Dubai airport is tax free.