Very easy to use. Lightweight, doesn't tire you out. I have a tall car and it's perfect for the roof and windshield

I use it to wash the entire car, not just the windows. Overall, much more convenient than a sponge because I don't need to bend over too much. It holds a very good amount of soap. I can say that I washed the car in 2/3 of the normal time. In areas where it didn't fit (handles, etc.), I took the cloth off and used it as a sponge. It's convenient that it comes off. It requires a little attention, if you use it too quickly, it can suddenly get stuck in car crevices. Also, when some soap gets into the area where the extension tightens, it doesn't hold resistance as well and it can gather if you press too hard.