It's been with me for well over a year now. The vacuum cleaner is outstanding in its category. Yet, there are subtleties: Since more than a year ago, Airobot has been unable to find a solution to the permission problem in the application. Users are unable to access their accounts, and there is no way to reset their password. despite the fact that there are already a lot of reviews about it on the app store, we still recommend it. It is quite odd to have such an impolite attitude. Exit: creating an account to list the United States of America as a nation. After that, authorization will function as expected. During the course of several months, we exchanged emails regarding this topic; nevertheless, in the end, they just stopped responding altogether and gave up. - In addition, there is an equal chance that the robot will make contact with you as you are inputting the application. You have to perform a restart, and once you do that, everything will be fine. Nonetheless, everyone writes about this topic, but the airobot could not care less about it. - The shiny surface on top and sides is scratched up to an extreme degree. In theory, there is no difference; nevertheless, this is not the case in practice. - He has trouble recognizing barriers in his path and will brazenly attempt to move them. The fact that he leans against the open door, closes it behind him, and then complains that he can't come in is particularly frustrating. In the case of such grandmas, they could also screw a lidar into it so that it sees an obstacle rather than merely sensing it with a sensor in front of it. This would allow it to avoid crashing into things. It would be preferable to resolve the issue with authorization within the application rather than custom reviews here. Well, custom reviews do not exist here. In overall, I am happy with everything. I did not test out any other firms, so I cannot comment on whether or not this one is worth the money; nonetheless, it does appear to be somewhat pricey. Having said that, I did end up purchasing a second scrubber in addition to the first. In general, it is largely to this pair that the house is in such remarkably good condition, and he, too, brings his own particular touches to the mix.