I live in Dubai and I love it! Abu Dhabi is quieter than Dubai but I know plenty of people who previously lived in AD and raised kids there that loved it!
The main concern when initially considering it is what kind of package your husband would get. Housing is very expensive - roughly 200,000dhs a year £40k) for a three bed villa. Often rent is expected to be paid in one cheque up front.
Schooling varies but it's roughly £10k per child. Groceries work out at London prices unless you are buying British imports which are massively overpriced! Water and electric are very expensive but I worked out that in a year it was slightly more than UK gas, water, electric and council tax combined. Cars are cheaper than the UK and petrol is a 5th of the price. Plus you need to factor in air travel.
It is a tax free place to live but don't be fooled! There are taxes on everything such as "fees" to connect utilities, tolls on the motorways, "fees" even to get a phone or TV subscription! You end up spending lots on these things which is almost as much as you' be paying in tax!
I was terrified of making the move but quickly made friends with great down to earth people. DD settled straight into school and we're all very happy!
The heat and humidity gets a bit much from May - October but there is so much to do indoors that you don't have to spend much time outside. The rest of the year is lovely. You do quickly acclimatise! It was 20 degrees when I did the school run this morning. I was wearing jeans, t-shirt, fleece and flip flops!
If you have any questions I'll be happy to help you.