okey, this is going to take some time for you to read :p.
first, hakkasan is one of the best restaurants i have tried in the "uae" not just abu dhabi.
service: emirates palace restaurants share the same quality of service, you always feel at your him from the moment you step inside, everybodey is helpful, smiling and professional. everything is put in an orgnized fashion, you reach the door and somone will open it to you from the other side and direct you to the seating team, the seating team will have your info if you booked earlier and will direct you to your table and introduce you to your waiter, the waiter will hand out the menu and will help you if you need any help and will always now the menu and dishes like the back of his hand.
food: authintic chineese food and will always be made of top quality ingredients. i have never ordered somthing that was bad or badley made, even if i didn't like its taste it is always obvious that it was well made.
drinks: hakkasan is one of the places where you cant go wrong with any drink you order. you will find your regualr mojito, pinacolada and you will always find somthing different which is always an extra point to any restaurant.
dessert: well, this is where i deducted half a point. hakkasan has one or two good dessert dishes, but they lack the options. i wouldn't blame them becouse chinesse cuisine has a very limited dessert options.
recommendations: mango duck and fried dim sum for starter, a selection of thier signture beef, duck and seafood dishes with some noodles or rice and souffle for dessert.