If you are looking for screenhero alternatives, you should check out Tuple! Our team has been using it for about a year now and we love it.
My favorite part about Tuple is how it HAS NOTHING that overlays the screen. It just hides in the tray.
I HATE when these screen sharing apps all try to put floating windows and menus and chrome around the screen edges. Just let me share my screen without getting in the way, dang it! Why is that so much to ask?