Regarding the medical insurance....
You are fully covered everywhere in Doha, as well in the expensive places.
The only difference is that Doha Clinic for example will pay all the expenses instantly while some other places will ask you to pay the bill and you claim afterwards the amount from the insurance company.
The insurance is very good inside your area of coverage and your table of benefits....
WATCH OUT!
Not covered are:
Ophtalmological costs such as glasses.
Dental ( expect emergency dental care)
All costs related to pregnancies, deliveries or any costs related to complications of these.
Another thing to remember is that this is NOT a group insurance. As far as I know, in case you would be fired due to a medical reason ( remember e.g. that any form of malign cancer is a reason to revoke your class 1 medical) you instantly loose your medical coverage as QR would seize the payments in your name instantly.
Just my theory as I havent found anybody yet in HR or at Allianz who was willing to confirm or deny this untill now.
So all in all, rather good insurance but with a few rather large pitfalls...
Hope this helps