yes it is worth visiting. We even enjoyed the free Bluebird travel egg roll gift box which is exclusive only to TRIP.COM when booked online. time is flexible. we booked for 5:00 pm but they allowed us to enter at 4:00 pm. Even the elevator experience is nice. I was so amazed how fast the elevator reached the 89th floor. there is even an interactive lighting on the ceiling of the elevator while on its way up & down. Being a Civil Engineer, I was so amazed when the Tuned Mass Damper (TMD) that helps absorb some of the movement and reduce the building swaying was explained in the audo-visual presentation. My wife also enjoyed our date, thanks to the stunning sunset view and the various lights at night. She also enjoyed photographing the numerous photogenic designs on the 89th floor, where you can even purchase food and drinks. I'll bring the kids along next time.