I tried to purchase this model twice, both vacuum cleaners turned out to have faulty front bumper sensors to one degree or another. This drove the vacuum cleaner crazy, leading either to inadequate movements or to stopping cleaning. Also, the vacuum cleaner is quite clumsy, when turning it hits obstacles with its back, perhaps this is due to the fact that the dimensions have been slightly increasedcompared to previous models, and the software has not been adapted as it should. In general, I have to admit that this is a step backwardscompared to the same XV-21, it was made better, behaved smarter andcomst less. Maybe such a batch came across defective, although I bought it in different stores. In general, at the moment I do not recommend buying this line, I advise you to wait for improvements and software ates, and maybe. look at the Signature line. As a bonus, I am attaching a two-part ersatz-pseudo-documentary film "Search and Perseverance" - 40 minutes from the life of crazy robots on 12 square meters. Episode 1 () "Back and up. Search for the true path". From 2-4 minutes in some places irrational, in some places inadequate behavior, in the end the robot interrupted work out of the blue. From the 16th minute - also not very adequate,comnstantly beating backwards into something. 2 series () "Around. The path of perseverance". The series tells how, with amazing thoroughness, you can clean an area of 1.5x1.5 m2 around a chair on wheels for 15 minutes.
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