No offence viper but why did you apply if you don't know anything about EK? People coming in here blind is half the reason the place is such a disaster now.
Anyway.... come and do the interview, why not? You'll get a free 4 day trip to DXB. See if you like it. Then go home, you will have about 2-4 weeks to think about it before you get a YES or NO e-mail anyway. So plenty of time to discuss with the wife or whatever.
Good luck