Am I the only one who thinks Dropbox isn't very good? I only seem to see positive comments, and that just doesn't make sense to me. I'm a premium Dropbox user

Am I the only one who thinks Dropbox isn't very good? I only seem to see positive comments, and that just doesn't make sense to me. I'm a premium Dropbox user with multiple terabytes of storage. (We deal with large files that have to be shared among many users widely dispersed.) I've been using it for a while now. When dealing with large files, it's slow, clunky, and restrictive. You have to use the desktop client to upload files of any appreciable size, and then you get zero feedback on the file's progress. I just don't see how $3,500 a year for that is better than the cost of an old-school FTP server. I'm curious if any of you are in a similar situation but have had a better experience.