In general, the model is not very successful, I used it for 3 years. You need to charge it, prepare the solution, pour it into the brush, then pull the rag with difficulty, then put the brush with the rag on it through complex manipulations, and you need to do this carefully, because at the slightest skew from just backing back and leaning against the wall, it just starts to slip. You need to keep an eye on him constantly, because he periodically bugs. And you have to keep reloading. In general, Skynet will never capture us. With such robots, we will throw snowballs at them, even plasma guns are not needed :)