There are of course many branches of Starbucks in Doha, we sometimes go to the ones in Landmark, Villaggio, Hyatt Plaza and City Centre malls. The staff in City Centre and Hyatt Plaza have been very friendly and helpful.
Usual drinks of course with lattes, cappuccinos etc as well as filling that gap snacks.
The only thing that spoils these cafes for me is that they are inside no smoking Malls and some people think it is OK to smoke in them. This puts me off going in as it is nice to eat and drink without the accompanying cigarette smoke.