My kids were born and grew up there and loved it. They are far more culturally aware than many of the kids here in UK, speak a smattering of odd languages and know about other religions, cultural differences and how to behave in different cultural circumstances. They have friends who live all over the world, which makes for some awesome holidays.
Moving to a place such as Dubai with teenagers is I think easier than moving within UK at that age. In ex-pat countries all the kids know what it is like to move around and change country and school and have to make new friends. They are used to new people arriving and best friends leaving and as such make an effort to include the newbie in what is going on socially. In UK, where many people have lived in the same place all their lives, it can be much harder to integrate.
There are some excellent schools in Dubai (Dubai College being the top one) - check out the GEMS schools - but they are expensive, so make sure Dh gets schooling paid as part of his package. Plus health care.
There is a lot to do in UAE - interesting places to visit, amazing architecture, interesting older areas, concerts, Dubai Rugby 7's every year - a must go to, the Dubai World Cup - another must go to, sailing, hashing, tennis, horse riding, cricket, hockey, netball, rugby, the list goes on.
Yes, people have maids, just like in UK people have cleaners, au pairs, nannies etc. But now that Dubai is so commercial many more women work than when I first went there. Dubai can be as exepsnvise as you want it to be with 200 gbp Chapmagne Brunches on the weekend, but not everyone lives like that. For the majority life overseas is like life at home, kids go to school, mum/dad goes to work, dogs have to walked, homework done, shopping, cooking etc. But with all that you get a wonderful multi-cultural mix of people who are happy to share their culture with you. No-one cares (well most of people) if their neighbours are British or Indian or Sri Lankan or Emirati. Kids grow up with no idea of a colour barrier, and often if you ask where their friends are from, they say they don't know as it doesn't impact their friendship.
Sorry, this has been long, but I LOVE the Middle East - if your daugther asked my kids should she go - they would shout YES so loudly you would be able to hear it from here! She will have a wonderful time, meet awesome people and learn so much about the rest of the world.
Hope this helps