Reservations are not required, but it's best to call ahead during weekends.
Expect no wait for food during off-peak hours.
Tipping is optional and based on service quality.
I have been using it now for 3 months and it saves me so much research. Reduces the need to call and double check every time.
How did I not know these places existed?! Atly's scoring is a lifesaver, now I can finally find THE spot without wasting time Googling my life away.