It is definitely worth doing. My wife & I fully enjoyed our day there, even though we bought 2 day tickets. I think 1 and half day will be enough to complete all the rides and see all the shows. The main thing is to consider the time when you should visit. It is best to go near the end of holiday season and during school term. When we were there, it was quiet and we didn't have to wait for long on any of the ride and shows, therefore no need to get the VIP tickets. We went near the end of October and luckily the weather was great, sunny & warm. We had a great time!!!!!