Yes, I researched it in some length. It was the non-intuitive part that compelled investigation. I seriously doubt, personally, that it will find it's way into bulk commercial refrigeration though.

They use exceptionally pure, rare earth materials, very expensive, highly tuned lasers, and are only cooling infinitesimal amounts of material. The lasers only cool the atoms directly exposed to the beam which is why the Feshbach resonance method of fliping the spin of the more energetic atoms in the center of the material and ejecting them out of the system with magnets is necessary. As far as the laser cooling is concerned it was the ingenious use of the Dopler effect that really impressed me. Both the magnetic and laser methods are seriously cool...pun intended.