Finding the right Restaurant in Dublin

Hey guys! Me and my friends were talking about restaurant guides/websites and we thought that there really isn't a good one-stop-shop website or app for Dublin restaurants. For example, there's nothing for restaurants like just-eat is for takeaways or Publin is for Pubs. I know there's TripAdvisor etc. for reviews but they're not restaurant specific and its not really interactive (unless you leave a horrible review).

Do you guys think a new restaurant website/app would work if it was done right? Like if you could see special offers, add your favourite places and make reservations? Is there any feature you would like to see?