I have always been a loyal Windex fan, and have always had a stash of that beautiful blue cleaning product in my cabinet. Well, ever since having children, I have been trying hard to "green" up my cleaning regimen, so I thought I would give the ammonia free version of this tried & true product a chance. Let me just say, I am extremely disappointed. As most people know, the original version of Windex is known to leave windows and mirrors spotless, sparkling, and streak free. Well, this just has not been my experience with this product. Every single glass surface, window and mirror in my home are covered in a nice streaky residue thanks to this mediocre product. Obviously, I am not a professional window-washer, but, it should be pretty easy to spray it on, wipe it off and have clean windows and mirrors. After using this, all of my surfaces just look dirty, actually dirtier than before using this - if that's even possible. I have tried it multiple times, wanting to really like it, but sadly, this product just doesn't live up to the Windex name, and I will be going back to the original.