Mac Donald's in Islamabad...
First of all, I was amazed to find there is only one outlet in the whole of Islamabad..
Secondly, I went on a Sunday, and the rush was like a fish-market...4 long queue's, had to wait more than an hour in line.
Thirdly, the food was badly prepared and served..Cold burgers, warm drinks without ice, and the burger pattie sticking half-way out of the burgers (trying to fix this but it was stuck in place).
Can't advise you guys not to go there, as it is the only outlet. But Karachi people will be dissapointed there.