It is very fast, has good support of all types of files (zip, rar). The best thing about this software is its ability to work with large number of files in one go. You can use it as an archive manager or you can extract your file from one folder and move them somewhere else. I recommend using if you have many documents (docx, doc), images, videos etc. This will help save time and effort. If you want to check what data is stored inside zip/rar then open it up manually instead of going through the hassle of extracting everything. We need some sort of application which helps us quickly find out the size of our archives before we click 'extract' button. That's why i like to use DynaZip max secure because it gives me almost instant results compared to other softw.