Arthur's is a great place for brunch, especially in the summer. If you're willing to wait before getting seated, it's definitely a must in the city.
Lineups are to be expected especially on Saturday and Sunday. We went for brunch on a Sunday and waited around twenty minutes before getting seated. We could have been seated earlier inside but we were keen on getting a spot on their terrasse. To compensate for the wait, the staff distributed delicious chocolate bakba to the people in line, which was very appreciated. The Shah special and the avocado toast were both delicious and the service was surprisingly fast considering that the restaurant was pretty much full. We also recommend getting a mimosa or freshly pressed orange juice with your meal. We will definitely be coming back!