Check current threads regarding GCAA and Muscat.
A short answer to your questions, 1. Good. 2. poor to adequate. 3. Good. 4. Good. 5. Barely, they tend to cover the bare minimum and leave you to your own devices. 6. 3-4 months. 6. Currently the worst unit - UAE ACC, apply at your own peril, inmates are currently trying to leave. Muscat is a better option but plenty of red tape, Bahrain is possibly the best unit to be at.
Now do some better research, there is tons of info. Don't read past the first 2 pages as it just gets into mud slinging.