I have tried a couple of different kinds of protein drinks but only because of an othodontic appliance that makes it impossible to chew! Atkins is AWFUL! I tried another brand that is "low carb, sugarfree" and while better than Atkins it is a long way from tasty. These are perfect examples of what we love to call "frankenfoods!" You know, the super processed food that bears little to no resemblence to REAL food?!
I gave up on the protein drink idea and started making smoothies with yogurt, tofu and fruit. They taste MUCH better and are all natural. Between that, some chicken or tuna salad, and a serving of peanut butter stirred into some oatmeal I figure I'm getting enough protein. Plus, those drinks are WAY expensive!
Good luck!