Flow is a terrific feature, I love it. I use it on a Windows machine + extra screen and a MacBook + extra screen, so 4 screens in total. I need to copy/paste quite often from PC to Mac and vice versa. So the Ctrl-C and Cmd-V option is very nice. Although it is not always working.
1. Pasting a picture from the Windows Snipping Tool to the desktop of my Mac doesn't work.
2. And drag and drop would be a great improvement.