Does not like old thin linoleum, if with bubbles. But through the junction between the unrenovated old and new floors (the gap and the difference in height by a couple of centimeters), it crawls without problems. It won't clean out corners and crevices, it's round and not particularly small, and a corner brush doesn't help much. In general, it is good for maintaining cleanliness, for guidance - not so much. Sometimes goes crazy and loses orientation, especially in wet cleaning mode. I mastered the territory of the apartment in several steps - at first I did not want to leave the living room, then in the bedroom I refused to go under the table, but gradually I understood where everything was and goes wherever I am physically able to crawl through.