Comment on Transmit

Elegant UI, excellent functionality, occasional performance hitches; despite being a paying user for years, I've switched to YummyFTP for SFTP and vanilla FTP, because I prefer its Finder-like hierarchical view. (I do web dev for a living; I don't use Amazon S3, and avoid WebDav like the plague!) But if you're only gonna pay for one FTP app, Transmit is the one to buy!