I am currently in Abu Dhabi on business, and I must say I am fascinated with this place. The weather is fabulous right now - but then it is not summer. The people have been very friendly and welcoming, and yes, I do worry about how the migrant workers are treated, but only due to what you see and hear about it, not on any evidence while I am here.
I feel safe when I go out - day or night. And I have been interested to see what is evidently a softening of the culture. For example, I have seen couples out together in restaurants, which would have been unusual even a few years ago. However, it seems most people go out in single sex groups. Children are obviously loved and certainly tolerated with good humor everywhere.
There are a lot of women working in interesting roles - and yes, they wear an abaya, generally, but I have not been made to feel uncomfortable for not wearing one. I have made sure my clothes are generally modest, but basically I am wearing what I would wear in the US in my office, with one or two minor exceptions.
I have had 1 occasion where a man has been rude to me, but hey, I can tell you of plenty of those at home, so I am not clear whether it was cultural or he was a dick.
It is certainly expensive, and you need to make sure your package takes that into account if you are considering coming here, and I understand that living and working here is a lot about hurry up and wait, but if you are prepared for that, I am sure it would be a wonderful place to spend a few years and learn about.