Dum Biryani is hard to find in Phoenix and this is the only place I know that sells Hyderabadi Dum Biryani. I tried the Veg Biryani and Egg Biryani and they taste good. Sometimes the gravy that accompanies the Biryani is watery. The Egg Biryani is especially good when made separately with what they call special biryani rice. But sometimes they just include a boiled egg with the veg biryani and call it the egg biryani.
I've tried the Navratna Koorma several times and it always tastes good but it is sometimes diluted.
I've also tried the Paneer Makhni which was very diluted, bland and had very few cubes of paneer. So you have to be careful with what you order. Biryani is a safe bet, these guys are the best in the valley for Biryani!