As far as I know QR will interview you in Dubai. So the first time you actually see Doha is when you start your ground course, after you signed the training bond!
My recommendation is to stay for 2 weeks in a Doha 2-star Hotel before you sign anything. That gives you arealistic picture about the place.
Do not believe anything in these marketing videos, usually the opposite is true.
If you are single and you look for an adventure; try EK
. Remember it will be an adventure but still better than the nightmares in QR, GF or EY.
If you are married and want to get rid of your wife, bring her over! She will bug out within a few weeks ...promise
Good luck with your decision.