We were really excited and had set aside a whole day to shop here, but we were quite underwhelmed. The Microsoft store was fantastic and a great shopping experience, as was the M&M store (but after visiting the London one this one is TINY in comparrison). Food hall was just ok, I was excited about Pinkberry but they were out of the 2 flavours I actually would have had. I wasn't impressed with most of the clothes stores and found very little that interested me and the Mac store was so so busy, you could hardly move so I would suggest going to one of the department stores if you are going for MAC stuff.
I think after going o Millenia first, this mall was a bit disappointing, I really did expect more from a US mall, and actually, I prefer the good old Metro Centre in the UK (and that's sayin a lot). We spent 3 hours here before walking to Best Buy and going back to the hotel.