The ability to upload large files. We can upload multiple files in one go, without having to split them up into different file types. This is also very fast compared to other services like Dropbox. I have not found anything negative about this product as of yet. There are no downsides that I am aware of, but if you're looking for something with lots of features, it may be worth considering. It has all the usual functions you'd expect from an FTP server. For example, it allows you to upload and download files, directories and subdirectories.