Ai
Google
I would recommend this place for a good viewing point of the city. The church inside is nothing special, but the views from the point are worth the ticket price.
As others have mentioned, there may be a queue for the lifts, both to go up and come down since there is only one lift in operation and takes only around 10 people each time.
The views are nice when the weather is good, but the platform at the top is not too big, and as it's all outdoors, it can be a bit windy.