Bests & Worsts Reviews from Amazon

I am SO UPSET! When I first received Winbot W730, I was singing praises to it. I told my friends about it and even wrote a recommendation on Facebook about it. Update: I have only had this piece of junk for less than a month. When I first got it, we used it on several pieces of glass, including a mirror, with no problem. Today we thought we'd clean our downstairs windows. Imagine how sick I was to hear a big POP, then see a resulting long crack. I couldn't believe my eyes. While I know I did nothing wrong, dummy me tried it on an adjoining window, and lo and behold it broke that one too! Thank goodness I bought it on Amazon less than 30 days ago. I took pictures but it's very difficult to capture a crack in a clear piece of glass without taking a picture of the backyard at the same time, but I'm sure you get the idea. Please, people, do NOT waste your money on buying a Winbot. I'm out the cost of replacing two double-paned windows!