Al Waab is a good area, pretty much everywhere in Doha is fine apart from the Industrial Area. Depending on what you want, it is probably a good idea to get a compound with plenty of facilities- pool, shop, gym etc. Driving here is a pain in the arse so you don't want to have to get in your car for the occasional pint of milk etc. Also, we found it far easier to meet people and make friends on a big compound. Personally, we're in one of the Beverly Hills compounds. 11k a month for a three-bed and great facilities.