Any mummies using the packit cooler bag to transport milk from work back home ? Is it good ?

Hi mummy, I've got a colleague who uses packit cooler bag to transport milk from work and back home. It keeps her breast milk cold for up to 6 hours (depending on external temperatures). She mentioned that it's easy to clean with soap and water.They’re PVC-, BPA- and lead-free, and nontoxic, at least according to the manufacturer.The main advantage of using this bag is that it's easy to pack and you don't have to worry about remembering ice or gel. She received the bag as a gift and she have no complains about it. Hope this helps.