Kevin Sadler wrote about it:

“The Minima Smiley was first released in December of last year and along with the rest of the Boucher Minima’s made it to my Top 10 puzzles of the year. It was so good I actually spent several paragraphs gushing about how it challenged me and scared me half to death as the magnets inside caused various things to clack together unexpectedly. This time the Pelikan team are re-releasing the original version in wood (Mahogany and Maple with a Yellowheart smiley ball) and also an identical one with a see-through acrylic box and Bubinga pieces. They both solve the same way but obviously one is solved blind by deduction and the other is entirely visible. The solution is fabulous and classic Boucher with a wonderful set of Aha! moments.

The goal of the puzzle is to get out Smiley from the box!