I observed its running way and was surprised by its intelligence. Wherever it starts, it looks for the edge on the room by itself and won't stucked by furniture legs. It also can go back to the charger but itself when nearly run out of power. Remote control has features to give it more control. It does a great job for cleaning the floor. Very happy purchase!I received this sweeping robot today. I have tried it. it's good. I saved a lot of time for sweeping the floor when I go home...My dog shed a lot of hair. And this robot could be set up for cleaning regularly every day, which has changed my life! So that I can go home from work without worrying about the ground hygiene.The robot sweeper is the greatest invention of the 21st century!I bought this robot vacuum because I have two cats, this vacuum is really good, it can withstand the wear and tear of cat hair, our house is covered with carpet, the function of it is enough, my two cats thought they got a new friend, full of curiosity, timing function is very good, free my handsWe've used this vacuum for about two weeks. It has strong power and saves us a lot of time. The quality is very good at a price much lower than some big brands.this vacuum saved so much time for me, the remote is very convenient, I have three cats so I always spend so long vacuuming. With this I just turn it on and go shower or cook with the time saved. You can also schedule it to turn on by itself at a set time.In order to test the work ability, my child puts a safety helmet and paper on the carpet. It works very well. It saves time and energy for mothers with children. Recommended!