Viomi Alpha 2 Pro Smart Robot Vacuum Cleaner | Self Empty | 4000pa Suction Power | 4 Line Laser Navigation | 1Year Warranty

Great product with strong suction power even with the power saving mode but the movement of the head (for floor vacuuming) is not as intuitive. Took me some time to figure out that I need to only move my wrist to get the head to move right or left. But slightly more difficult to do that if the stick is flat, like when vacuuming under the bed. It's also a bit heavy and you've got to press the power button all the time. So it tires your hand out. I'm young, so it's not such a big deal, but I think it would be quite a burden for older people.\n\nSo overall it's a nice product, and useful. But perhaps not the most ergonomic, especially for older folk.