Roborock E4 vs E5 I think it's a good idea to add the mop pad. The mop pad has its place, but it can't take the place of just getting down on your hands and knees and scrubbing the floor. To be honest, the roborock s50 was mostly made to be a vacuum cleaner, and it does that job well. The "mop" is just a bathroom washcloth that is mounted well and gets damp from the water tank. I tried it out on a tile floor that went from the kitchen to the hallway to the dining room to the mud room, and it worked about as well as I had hoped. Imagine wiping the floor with a wet towel and making a single wipe by hand. What it does is that. No, I wouldn't say that it's a good way to clean my tile floors instead of a thorough washing. But in between big scrubs, the mop would do the job of keeping the floor clean. Face it, if you're looking at this product, you probably don't get excited about the idea of sweeping, vacuuming, or mopping ( just like me). You could spend an hour of your day sweeping and vacuuming, or you could just sit on the couch and let the vacuum do the work for you. I think the mop pad works better as a dust mop on a well-sealed hardwood floor, but I don't have any hardwood floors so I can't say for sure. Overall, the mop is a useful addition to the roborock s50 that makes it more versatile, but it won't make you give up your mops and scrub brushes if you want a deep clean. I hope that this doesn't stop you from thinking about getting a Roborock S50 vacuum. I've had my machine for two weeks and can confirm that it was mostly made to be a vacuum/sweeper. It does a great job of picking up lint, dust, cat hair, cotton wood tree fuzzys, sand, and other debris. I hope this answers the question you had.It works much better than I thought it would. The vacuum moves in both directions and spins to move over the walls and furniture. Like I did with my old robot vacuum, I plan to use my regular vacuum cleaner once a month to clean along the edges of things. Please be aware that it will recognise carpets, but because the water tank has to be installed by hand, it won't stop the mop from going on the carpet. If you don't want your carpets mopped, you can set up zones where you have carpets, or you can use magnetic strips to accurately insulate your carpets so they don't need to be mopped.With the Roborock E5 mop, you can clean your floors better and faster. Methodical Perfection in Cleaning With the Roborock E5 Mop, you can clean your floors better and faster. It knows where it has been and what needs to be cleaned because it has OpticEye, twin gyroscopes, accurate internal mapping, and a z-shaped path that helps it clean quickly and thoroughly. Clean your whole house at the same time. The Roborock E5 Mop's powerful battery lets it clean for up to 200 minutes and 2,152 square feet on a single charge, so you can clean your whole house at once. The following things will be sent to you: One E4 Robot Vacuum Cleaner, one E4 Water Tank, one Charging Dock, one Power Cable, and one User Manual. It has a big water tank and more than 1600 square feet of mopping space. When you fill the tank with water and control the flow of water, the robotic vacuum cleaner both vacuums and mops, getting rid of small particles that a vacuum alone might miss. Smart Navigation and Scientific Cleaning: Thanks to OpticEye, twin gyroscopes, and accurate internal mapping, Roborock E4 cleans your floors quickly and efficiently in a Z-shaped pattern. The robot vacuum has a number of infrared sensors and sensors that can tell when it is about to fall off a cliff.