New kind of solid state cooling: "Plastic Crystals"

https://www.nature.com/articles/d41586-019-00974-5?utm_source=twt_nv&utm_medium=social&utm_campaign=newsandviews
This might have potential for reducing the operational costs and increasing the portability of quantum computers, but there's always a catch. Only time will tell us what that catch may be.
What are everyone's thoughts on this?