Good Luck, John. Don' know anything much about Etihad, other than they appear to be a decent set-up and have a strong backing. (Couldn't be stronger, in fact).
However, assuming that you come from an already experienced flying background, don't be a little surprised or frustrated if things in AUH are a little bit slow and muddled up. The company has only just recently been created and is still facing some initial teething troubles (troubles maybe too strong a word, in fact).
As for AUH and the team you are joining, lots of them DO have local Gulf experience and will help you to settle in. I wouldn't worry. Abu Dhabi itself is a great little (!) place and you will absolutely enjoy it.
So, Good Luck!!!!!!