Ive been using this for over a year and it works often but some features just dont work well. For example, uploads to S3 time out and cant be continued where they left off. Ive had to try uploading a 1GB file about 10 times to get it up successfully. Another problem is that you cant copy folders around - the icon seems correct and the tooltip says "Copy folder…" but it just refreshes the window and the copied failed but no error message is shown. Very frustrating. I have just bought Transmit and hope that it is as good as I hear.