Its worst!!! I am busy man, my time is treasure to me. It waste a lot of my time and money on it. You should think about persons who are busy on there works. If I spend my money on it, but I cant have the same respond. Thats very angry for us. I am now very disappointed because this disk cleaner app. You must be kidding me, I dont want to believe its such a difference. I down it, and I used it to clean my disk, and it took me several hours. and I must be in there to click. It means it need someone to wait it. It would have to wait for me to the Mac, just click a few buttons. This app is not make me angry in one place, It is not useful at all, It makes my Mac so slowly in many place. Even more serious is that I have a lot of the cache is not, there are a lot of documents What is very important for me I have downloaded are disappeared. Thats the biggest problem I hate this app. And I know I will not use it any more. Now I calm down and write this review, It represent my real thought about this app. What I say are all real. and I hope that what I said can give someone who want to download this app a little help. I am serious about this one. and I hope the developer can listen the review. I am real serious.