Now, you can visit http://reservations.sg or http://chope.com.sg to make your reservation at some of the restaurants.

Reservations.sg has 68 restaurants available for reservations.

CHOPE has about 60 restaurants:

I personally has yet to try making a reservation at these 2 websites as most of the restaurants listed are not the restaurants I will patronize which is the limitation of the portal. It will benefit people who like fine dining for now. If you are the lucky one who are into fine dining, you might want to try it out!