I have a model VERY similar to this. I use mine for cold-therapy after hard workouts and long work days.
The best part though is when it gets SUPER hot out. Cold on the face, cold on the neck/lower-back equals the greatest beat-the-heat money can buy.
My only recommendation for cold-therpy use is to get two. That was you can rotate them in an out of the freezer.
I'm gonna get one to keep in my work-fridge for those stressful days.