Yay Protein!

I've been wanting to introduce a low calorie Protein shake into my diet for a while now, and last night when picking up my Christmas cards at Walmart, I decided to grab a small container to try out!
I chose the "Get Lean and Toned" option, as opposed to "Build Muscle".  I am not planning to add this to my diet, but to replace a snack during the work day and see if it keeps me full and satisfied. 
Also, I hope it tastes good :)

Does anyone have any experience with protein shakes?