Good luck using the service voucher though! Hope that it's not only for the duty free shipping.

On the comments about HKG being a bad airport for transits- I disagree. It might not be the easiest to a first timer on a short connection, but once you have a hang of the optimal transit points/where to stand for the train(if needed, not much longer to just walk fast), it's pretty pretty fast. Many rate SIN as fabulous for newbies in transit, but I've come across many confused faces trying to figure out the (easy) terminal shuffle there.

I do a 1hr-ish transit 5-15 times a year & have never had a problem, even when the gates for the arriving and departing aircraft were at opposite ends (and unless the arrival is more than say, 15mins late, manage a quick lounge visit/shower). There's usually someone waiting to escort via the most efficient path, if there are 40 or less minutes remaining, but have had to use their help just once over the years.

What I have noticed however (no empirical evidence, just a feel), that a lot more flights tend to be delayed nowadays, than say a year or more ago.