Very good. It folds into a very small space and moves easily. The only downside is that it is relatively heavy, but this is necessary for its durability.

This review is not for the specific model but more for this type of telescopic ladder, as they are all almost the same.
It is not as practical as I expected. The opening and closing are not very convenient. Additionally, there is a risk of catching your fingers between the steps when closing if you're not careful. Also, the locking mechanism is strange and time-consuming.
However, it seems quite sturdy. If I were to buy it again, I would exclusively choose one of the smaller models that are more convenient/lighter/practical.