Out shopping, on my way to or from Uni (Garden City is on the busway), or on my way to work, if I need a caffeine hit I ALWAYS go to Zarraffa's.
When the maturer baristas are behind the espresso you get great coffee every-time; however, when some, not all, of the younger trainees are running the place, generally in the afternoons, the service slips and you get the odd burnt coffee. But still, a slightly burnt coffee from Zarraffa's definitely surpasses any from its competitors because of the quality of their beans is outstanding.
Also, grab a Z-dollars card. It is well worth it and saves you money, especially if you're a coffee-aholic.
As for the food, their cakes, cookies, and sweets are tasty treats, particularly their banana bread or white-chocolate and pecan tarts, but their savoury food is slightly overpriced for what it is and not WOW. But, Zarraffa's is all about the coffee and beverages, not about serving lunch since they don't have the facilities to create any elaborate meals.
Every time I am out somewhere, another shopping centre, that doesn't have a Zarraffa's, as I sit at the table drinking a latte, I always think "it's just not Zarraffa's..."

Hot Drink of choice: Tall Caramelised Cappacino, double espresso shot.
Snack: toasted Banana Bread.
Cold Drink of choice: Caramelised Fusion with cream.

Z-card member: 11004
Twitter: @clm_writer

Approximate cost: $4.50-5.30 approx per tall coffee