Great puzzle! My 4 year old has put this together and pulled it apart a bunch of times already and it has yet to show signs of use — no bent edges, no signs of wear on the image. Image is perfect, as there’s enough color/pattern variation to have a decent guess of where any piece goes. And you can make it a lot easier by building the puzzle on top of the image because it will match up 1-to-1.
Pieces fit well, with no issues of pieces fitting where they shouldn’t. The box is the only complaint I have — it opens with a flap on the side, rather than a traditional puzzle box. But given how small the puzzle is, it’s understandable.
We bought a bunch of the mini puzzles and found them all to be equally high quality.