As Buggy mentioned, it stops in the middle of long transfers and you have to start over and over again. E-mailed customer service and 2 weeks later got a reply instructing me to Check "Keep connection alive during long transfer" from Advanced preference. Did that and still does the same I have to try 3-4 times before a 20+ files go through. I paid for this software and I think I will go with another FTP software cause I can't put up with this any more.
Do not recommend at all if you are going to ftp files bigger than 10 MB