Question about Roborock S5 Max

I'm not sure about the 2cm slats. He has already tried to drive out onto the balcony over a threshold of about 1.5 cm. I have no idea about question 2. I don't see any disadvantages of S5Max. It is a good reliable device, cleans well. Especially the damp pick up takes away a good bit of dust. All in all, very satisfied after 1 year of use.