We got accommodated at Diwan Saturday night after a trip through the Aga Khan proper and without a reservation.
The atmosphere is impressive. The antique paneling and ceiling fixtures are positively beautiful. The music was present but quiet enough that it didn't interfere with our meal. This meant other diners weren't ALSO trying to talk over it which leads to this one-upping of volume that drowns many restaurants. I don't know why this simple thing is so hard but frankly, if you're there during prime time, you're there to see and smell and eat and talk, not listen to music anyway.
The food was beyond delicious. My partner and I had the kebabs for two. The bread plate that prefaced it was impressive and delightful with three different kinds of tasty flatbreads and a few spreads and oil to accompany.
The main was awesome. Great accompaniments, really good 'falafel crisp' salad, nice rice. The main reason I don't rate the place a 5 is because the sturgeon and chicken kebabs were cold by the time we reached them when neither of the lambs were which made for a disappointing finish.
We both had the saffron fried dough with figs to finish. Again, super delicious, great accompaniments, really satisfying. Topped off with a good coffee, great service and the space itself, we were thoroughly satisfied with this experience.