Like all appliances, maintenance is very important. I think you could be refused a warranty repair if you don't follow the manufacturer's maintenance recommendations. The advantage of this product is that it's linked to an app on your smartphone that tells you when to carry out a specific cleaning (sensors, rollers, side brush, filters, etc.) and when to change worn parts. If you comply with all this, I don't see why the warranty should be refused.
I've had this product for a few months now, and I'm very satisfied with it, using it almost daily.