[nticompass]

Currently I am using http://www.swish-sftp.org/ on Windows and http://macfusionapp.org/ (via https://osxfuse.github.io/, see also https://github.com/osxfuse/osxfuse/wiki/SSHFS) on OS X to mount SFTP servers.

Mountain Duck looks promising. For whatever reason the current solutions for SSHFS on Windows/Mac are slightly out of date.