Yeah, I use Filezilla, very handy. I particularly like the split-screen (local and remote directory) display.
Some time ago I read about security issues with Filezilla but offhand I can't recall what they were or where I read it. I'll ask my IT Team Security officer about it in the morning, I think she's the one that pointed me at the source.
Ipswitch WS_FTP 12 also has a split screen. Although I bought it over 10 years ago, so it’s likely far beyond version 12 (if they’re still making it).