These codes expire midnight at Scoopon, so you'll have to be quick + they exclude shopping deals -
Save $15 when you spend over $75 with code GIFT15
Save $25 when you spend over $125 with code GIFT25
Save $35 when you spend over $175 with code GIFT35
After a very quick look I have found that they have vouchers for a 3-course meal for two or four people including drinks (wine or cocktail) at The Little Snail, Darling Harbour, from just $86 or $71 after the discount. There are options for 4, 6 and 8 people as well.
After the discount you'll get exactly half price of what you would have paid without your Scoopon voucher according to Zomato, where the average cost is estimated at $140 for two people. This restaurant gets 4 stars out of 5 and very good reviews at various pages, such as TripAdvisor and Zomato, not to mention Scoopon's customers.
Valid for use until the 28th of January 2017, excluding public / bank holidays and special event days. Bookings are essential using the new Scoopon booking tool. Maximum of 1 Scoopon redeemable per booking