It's been a long time since my wife and I visited Dufan. Many rides are still standing even since almost 20 years ago when we last visited. This indicates that the maintenance is very good so that the existing rides are well maintained and operate as they should until now.
What is memorable for me is the Halilintar ride which again succeeded in making my heart feel like it stopped even though I had prepared myself mentally and saw all the curves, ups, downs and loops.
The most memorable was when I was "fooled" by the Mystery Train ride which was indeed the first time my wife and I rode. For those who have never tried it, good luck. It's better not to find out first so that it remains a "mystery" until you actually ride the ride.