As someone who's tested multiple STEM kits with kids, the Poraxy 4 Set stands out for its creative projects but has some quirks. The music box and robot were instant hits - watching gears move while playing tunes genuinely delighted my test group of 8-12 year olds.

The wooden materials feel surprisingly premium for the price point. I particularly liked how the laser-cut pieces snapped together cleanly without glue (though we did need pliers for some stubborn connectors). The variety - from password lock to coin bank - kept kids engaged across multiple building sessions.

However, be prepared for some adult intervention. The microscopic instruction font had us squinting, and the robot wiring diagram might as well have been hieroglyphics. We hit a snag when missing tools forced a hardware store run mid-project - not ideal for maintaining kid enthusiasm.

Durability is hit-or-miss. While the music box mechanism survived weeks of play, the piano's wind-up gear broke immediately in our testing. The coin bank's mechanical arms also proved frustratingly finicky for younger builders.

Pro tip: Photograph the password lock code immediately! We learned this after an unfortunate reset-to-000 incident involving one very frustrated 9-year-old.

For $20-25, it delivers solid educational value despite flaws. Best suited for patient kids 10+ or younger builders with adult help. Just keep your toolbox handy and maybe pre-magnify those instructions!