Newer QU staff such as myself are mostly found in two or three bedroom appts in a high rise block near Hamad Hospital, or else in semi-detached villas in a compound in Gharafa, ie between Landmark Mall and Education City. Never heard any complaints from Gharafa, and the only thing wrong with the appts is the rather unreliable fittings and badly-sited ACs which make the main lounge uninhabitable in hot weather.
If you've got kids, go for the compound. If you like having shops and restaurants and a licensed hotel within a mile's walk, go for an apartment. So far as driving to work is concerned, Gharafa's nearer but from the appts takes only about 20 minutes.
You'll be told that bedding etc will be provided. That's technically true, but you'll almost certainly want your own sheets. The beds are good, though.