The best thing about crossftp is that it can be used as both server-side software (uploading files) or client side software for uploading or downloading files from FTP servers. I like how you can easily upload large amounts of files at once. Sometimes when there are many clients using this program simultaneously we have issues where they get confused causing them to become unresponsive. This happens because of their limited resources. We use crossftp mainly so we don't need another ftp application installed in our computers. Using crossftp saves us time by not having to install an additional application.