This may be the wrong place to post this but in case someone is looking around and wondered about picking a certain type of deployment I just wanted to share our success on our live fully licensed Wing FTP Server.
I have Wing FTP Server running using Centos 6 64bit edition and hosted in VMware's ESXi 5.5. It is behind a firewall using port forwarding but otherwise exposed to the Internet and using an SSL certificate from GoDaddy.
The Centos server spun up real fast. I do have a dedicated nic in the ESXi server for Wing FTP. I wanted it 100% separated from the other servers in the ESXi server.
Win FTP Server installed flawless and only took a few minutes of effort. I installed it to the default Centos drive the install iso offers then after the first boot I added a 2nd virtual drive of larger size and mounted it in Centos so Centos and Wing FTP operates on it's own drive, where there is a dedicated data drive holding the user data separate from the OS.