I learned about this game by watching a YouTuber, but liked the game enough I wanted to play it myself rather than watch. The game itself is old but since I never looked for Puzzle games, I never tried it.
The game is simple. You have to make sure every Receiver gets all the information it needs. The game teaches you about every mechanic before testing your skills by adding requirements to get a Star. You can't get all Stars in a given level in one try as often enough 2nd and 3rd Star have different solutions. It's nice that once earned, a Star won't disappear.
It took me a few hours (4-5h, didn't count) to complete the game and all can I say is that it's a fun game to play. It has many tricky Stars, but there is always a way to get them.