The information is reliable, because it's based on recommendations from people who have actually eaten at each restaurants. It's also free. The restaurants on our site are not just compilations, but places people actually like. I could have just gone to the Rabbanut and got a list of kosher restaurants, but I didn't do that because there would be no guarantee of quality. For example, one Ra'anana restaurant has limited the hours they offer the discount because of the large number of people asking for it.
Clients come to listed restaurants and they bring their friends.
It brings in a lot of business. If a restaurant fails to offer the discount, then Debbie will check it out and try to ensure the client is recompensed. It sometimes happens that a waiter will be new and may not have heard about the discount. In that case, I'll call the restaurant and see that something is done about it. Clients are often so pleased that they e-mail with enthusiastic comments.