This is the platonic ideal of a family filler game. It's fast, it's fair, it requires zero setup, and it genuinely exercises your brain without feeling like homework. The mathematical elegance (how do only two symbols match between ANY two cards?!) is chef's kiss.
The BGG rating of 6.5 undersells it—that's because hardcore gamers find it too simple. For families with elementary-aged kids? It's gold. The 4.9 Amazon rating from actual parents tells the real story.
Yes, it's just pattern matching. No, it won't teach empathy or storytelling. But it will give your 7-year-old a legitimate win over you, build their visual processing speed, and create 15 minutes of high-energy fun that doesn't end in tears. Sometimes that's exactly what you need.