First hand experience here and I am shocked at the ignorant comments on this thread about Dubai. The Emirate has a lot to offer and if you play your cards right you can get a lot out of it. You can travel to sooo many destinations, learn so much about different cultures, if you are religious you can practice whatever religion you wish, etc...
Some facts: 5% tax is introduced in January and there is already municipality tax of 10-12% on restaurant bills so no, it will not be a tax-free existence. Dubai is very expensive to live, rent is sky high as are grocery prices not to mention clothing and cosmetics, browse dubizzle and expatwoman for on the ground info as well, most activities will require you to spend money due to the weather and lack of green spaces.
So, my advice is do your research about local customs, accommodation, cars (you both will have to have a car each unless your workplace is near the Metro but it is incredibly unpleasant to take when it gets hot). I would also urge you to get fully acquainted with the private medical insurance that is offered as part of your husband's package, make sure it covers for instances of everything you need it to cover for (maternity, dental, etc).
The job market is extremely saturated at the moment with companies laying staff off and not wanting to pay much, so a job for you might be a challenge to get. Be prepared for that depending on what field you are in, do a lot of recruiter/headhunter/agency networking in advance, etc...Constant networking and a lot more effort will be required in Dubai as it is a transient place, people arrive and leave all the time.
There are certain things to know about Dubai as well, like if you both consume alcohol you will both need your own alcohol licence and the amount of alcohol you are allowed to buy in a month will be dependent on your salary, etc...You haven't mentioned if you had kids or not but be aware that if you decide to leave the country with your children your husband has to agree to it with a letter and vice versa. If you do have kids make sure their nursery and school fees are fully covered by your husband's package as they are super expensive here.
If you are under your husband's visa he can cancel your visa at any moment without you even knowing about it and you will have 30 days to pack up and leave. I am sure this won't happen to you but unfortunately happened to others. Different rules apply here. Quora offers a deeper insight into life in DXB.
We never ever had ANY issues there.
It is all about making sure you will be fulfilled as well, as it is a very lonely place without family and friends. The environment won't help you in August either as it will be extremely hot (50 degrees). Oh, another thing: make sure the accommodation you choose had the AC serviced in your presence, as in the filters and all the air ducts cleaned (it is chilled water that is circulated there and it goes mouldy if unserviced). It is the responsibility of the person owning the flat/house (house=villa there) or living in it. This is to avoid getting respiratory illnesses as most people get pneumonia shortly after arriving. Take vitamins!
Oh and also make sure the water that will come out of your tap is super clear, while there we had to change four heaters as the water is basically desalinated sea water and no one drinks it, and the pipes were so rusty the water was dark brown. Buy water filters too for every single tap, including showers, many people report hair loss, people only drink bought water....I have TONS of advice