I do like this machine, which has 3 functions together. I tried it directly when i received it. App is easy to follow, the instruction is easy too. I just tried floor one of vacuum, which is tile & wood, looked amazing. I did the research which showed me it could remember several maps of floor. Looking forward to trying that later on. Recommend! Have to try this product, and you will love it. in addition，i tried multilevel function and split the level to different area which is sooooo healpful. This is my best of the best housework helper ever.