We arrived at around 4pm and the queue to collect our tickets to the observatory was short. We were lucky that the sky was clear and the views from the observatory was amazing. We stayed to catch the sunset and it was beautiful. There is also a small exhibition/display on the history of the observatory and Glico. It was overall a great place to visit.

We went there on a weekday evening. It was very packed and we had waited for 50 mins to get to counter to get the tickets for the observation deck. Then we had to go to another queue for another 25 mins to another counter to get the ticket for the slider (we need to sign a waiver form). There were only 3 people working at the counters for about 100 people in the queues. The slider lasts about 10 seconds. You are inside a tube and cannot see anything other than hear yourself screaming. The observation deck is relatively small and not too tall. It is better to go there in the evening as you can see the city lights. I probably won't go there if it is not included in the Amazing Pass.

Tsutenkaku is quite an old tower. You have a nice view over Osaka from the top of the tower, but it isn't as impressive as newer and higher towers around Japan. I don't think I would pay to visit a second time.

The original tower was the second tallest structure in Asia when it was completed and the current tower is a cool sight if you have time to go to Shinsekai. At 103 m tall it isn't the tallest observation tower and we decided not to go up during our visit because we had done quite a few observation decks already during our trip to Japan. The cost to go up the tower is 900 yen/person and it is located in the colourful Shinsekai area which is full of colourful lanterns and signs. The tower is also very close to the Tennoji Park & Zoo and we considered the area to be pretty family friendly in the evening. The closest metro is Ebisucho Station on the north side but the Dobutsuen-Mae Station to the south is pretty accessible to the south.