I love Rclone and have been using it for years (even recommended it to some customers for data migration purposes when I worked at Dropbox). The simplicity is what I appreciate most and the fact you can just run it every now and then to sync any new or updated files to your cloud storage of choice is what I love. Mind you I could never get the upload throughput as high as the Dropbox client itself (but that might not be RClone's fault).