Public transportation is the best way to get around; consider using the subway.
Expect long lines at popular attractions, especially on weekends.
Reservations are recommended for popular dining spots, especially on weekends.
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.