If I was fellow reviewer Rie and anyone served me such a bad coffee, I would ask for a new one - or I would just return it and get my money back.
I really like the opening hours of this cafe. And though drinking coffee late in the evening keeps me up all night, at least at Crows Nest Gloria Jeans I have an option. If this place is a bit too busy - or like Rie don't like the service, cross the road and walk right down the hill. On your left is a cafe with Free WiFi.
Back to GJ - it's fine, its a Gloria Jeans with it's expensive milky coffee, but works for me 'cos its open real late and I can get a seat.