If what you want is cooking without washing the air fryer, then everything is fine, although this particular mold is relatively small. Since I used a silicone mold for the first time, I think I should also add a few other general observations.
1. These molds do not have a single diameter but two: one at the base, meaning the bottom (the smaller one), and one at the surface, meaning the top opening (the larger one). In my case, the bottom diameter is 17 cm and the surface diameter is 20 cm. That is, the 20 cm dimension mentioned in the specifications—and based on which I ordered the mold because that is the diameter of the base of my air fryer basket—refers to the top opening surface. If I had known, I would have preferred a larger mold (around 22–23 cm, which means a 20 cm base) because, due to the flexibility of the silicone, the slightly larger top surface is more convenient.
2. The height of this mold is small (5 cm) and is not mentioned anywhere in the specifications. Since the heights are always small, look for it in the description and prefer the taller ones (I have seen—after the fact—up to 8 cm) so that the mold can hold more.
3. The biggest downside (or possibly also an advantage, depending on how one sees it) of these molds is that liquids do not drain away. The regular basket that the air fryer has is perforated, the juices fall into its tray, and the cooking comes out dry. In contrast, when using a mold everything cooks together and, for example, we get "soft" potatoes mixed with chicken juices or minced meat, etc., with the extra juice remaining at the bottom of the mold. Still, when I ate chicken with potatoes using the mold, they seemed more roasted than fried, meaning they were not crispy.
As for the construction of the mold, everything is fine and without issues. In the end, based on the above, draw your own conclusions about its use and usefulness.