The carpark is cool because:
When you arrive at the ticket machine it scans your reg plate. When you park and leave your car it knows where you parked and obviously keeps an eye on it - so if you leave your lights on, it knows and an alert is put over the PA system. When you pay for your ticket it prints the location of your car on the ticket. These are all relatively simple applications of existing technology but I've never seen them before and it seemed quite a clever use of them.
The main center itself isn't quite so impressive but regardless, there are booths scattered all over the place that let you find shops based on category or name. Once you select the shop it is highlighted in red on a map. I'd have liked it if the machines were smart enough to figure out your current location based on which booth you were using and draw an arrow between you and the shop you wanted.
Apart from that, the design is quite nice. Most of the elevators are flat instead of stepped, the whole place is unusually well lit (but not blindingly so), theres plenty of space for walking around and a minimum of little booths sitting in the way all the time.
the only thing I'd fault is that some areas were bin-less and there wasn't a seat to be found that wasn't in a food area. Like I said before though, it was the incorporation of little techy tricks that impressed me most.