If you can't or don't want to clean windows, and you don't like living with dirty ones, this is your choice. If you are a perfectionist and "I'm faster with my hands" - the robot will not suit you at all. In general, it washes well, but not quickly. Maintains cleanliness very well. There are no stains on the glass at all, if you do not wash it with dirty wipes. You can’t stick it on the window and forget it completely, it requires a little attention. The robot must be connected to the network, tied to something durable and make sure that there are enough wires and a safety cable. Then wash and dry the wipes. Napkins should be washed with ordinary powder without conditioner. Any air conditioner or softener will show up as streaks on the glass. Means for the robot can be made by yourself - 70% distilled water + 30% isopropyl alcohol. If you have two-chamber windows, the robot may begin to slide on them. To create adhesion, spray the product on the napkins in a circle (not much). I came across a robot with a defective tank for the product - liquid was leaking out. Took it to tech support. No problem, the tank was replaced with a new one. The equipment is good - a lot of napkins, a tool, a spare spray. But there is a strange flaw. The tool often needs to be applied with a spray bottle on napkins, but it is not included in the kit. On the table, at some point, he begins to tangle himself in the cable, and then calls for help. The developers should have foreseen this.