Check it out for yourself
The best way for you to evaluate the place is come over to DXB yourself preferably with the wife for a little longer than the 3 day interview. Leave the kids at home (if possible) as it is not easy to see it all and get a feel for the place with the kids. Look at the cost of living closely as it is not easy for a family to survive on an F/O's wage especially for up to 5 years and with inflation out of control.