I know it's a free software and feedback is always seen as being bitter... but
Keeping files synchronized between local/remote desktop is a real pain.

Right now you need to send and collect individual files and sort them manually from your download folder. There is no way to send whole folders (unless you zip it first).

Also, files don't get overwritten in the download folder. if you like to update a file to the remote system you first need to find it, delete it, then send it. For each file.

From the style of the program, your competition clearly is e.g. TeamViewer. There you can just drag&drop whole folders...