One of the absolute best places to visit in all of Busan. It would be a great experience for the family, as it's unique, and also quite affordable. A really picturesque location with stunning views. There's a small convenience store which is useful and a restaurant area with outside seating. The only cost involved is actually going up to the observatory, which seemed good value. Overall spent about 2 hours here, would definitely recommend for great views and a generally nice experience.
The tower is smaller and almost a third of it was taken up by the souvenir shop. The view from the top, of course was the usual aerial like view where you can see the city but that's about it. The glass wasn't very clean though. But the level below was a little more interesting. It had a space where it was arranged like a maze and every corner was a different feel - mirrors to create many images, a white and black mural and another had neon paints and the play of lights to create moments for photo ops.