This game definitely shows its age, and the mobile games that would follow this in the next decade have made this quite redundant. That said, there really isn't much to this game. You hunt around for ways to get groups of four, and that's mostly it. The time limit is too aggressive for the player to really want to think about their moves when the short-term gains outweigh it.
Simple and enjoyable but no reason to play for more than a few minutes.