Beware Dodgy Estate Agents
Current rates are:-
17,500AED + 20%tax per month in the Marriott Executive Apartments.
21,000 1 bed or 24,000 2 bed apartments in FZ preferred hotel which is the Dusit Thani on the main Sheik Zayed Rd. This is where the firm will place you if you do not ask for somewhere else or make your own arrangements.
Then we have the alternatives (fine but really you want a car for these) much more cheap and much more cheerful Abidos Hotel Apartments which all in are 13,500AED for 1bed & 16,500AED for 2 bed per month.
Premier inn Dubai Airport is 395AED per day which is pretty much 12,000AED per month. i.e your usual monthly accommodation allowance as a comparison.
The reality is say you want a 3/4 bed villa for the family you will pay 12-18,000AED pcm so you could basically get in the house slowly set everything up for your family and its the same price as being in a hotel ( granted a hotel there are no bills for wifi, DEWA etc
If You are going the 2/3 bed apartment route then you will definitely save cash by moving into your permanent accomodation sooner rather than later.
If you have friends here use their guidance as though your wife spotted the nice 3 bed in International City, Jebel Ali or Al Quoz for 110k and cannot see what the fuss is about you may find that you will sorely regret that choice within about 48 hrs of her arrival and certainly by the time any school runs or journeys to the sim and work have been done.
Bear in mind to take a smorgasbord of ideas from us on this forum. There are pilots like OKC who joined FZ back when Pontius was a pilot and therefore remember thinking that 120,000 per annum was outrageous for a 5 bed 6000 sq ft villa with a pool and complete with fluffers that 120k will now set you up in a studio in some areas,
Get online and invest lost of time now in looking at property on property finder et al. PM me once you are in country and I am happy to give you a recommend for two or three good estate agents, there are thousands of bad ones feel free to reinvent the wheel but trust us that we have all used bad ones and wasted a lot of very valuable time. And that time is valuable when you arrive as you simply will not have enough of it.