Initially, the price for all these spare parts seems unbeatable.

Two points worthy of mention and consideration.

The quality of the filter. A very important spare part, not only for preventing the spread of dust from the air exhaust but also for the protection and longevity of the machine.

After systematic use and before the recommendation for filter change from the application, I noticed dust in the section that intervenes from the filter to the exhaust. Practically, this means that for some reason the dust is not being retained as it should (100%) before the air returns to the surrounding space. In the long term, I believe that this dust leakage could negatively affect the smooth operation of the machine.

The build quality of the light-colored brush - roller. It is very poor with a lifespan much lower than that predicted by the application. Mine started to shed around 50% of the expected lifespan. The genuine one can easily reach up to 2 times the expected lifespan given by the manufacturer.

I leave a small possibility that the above may have been isolated incidents. It remains to be seen if you try them.

Personally, I choose only genuine spare parts, taking advantage of one of the privileges of buying a robot vacuum with an official representative and technical support.