I hate the shakes and soups - I live on chocolate tetras (don't mind the banana, not tasted the strawberry) and I love them! Really gorgeous! I have one bar a day for lunch - peanut or mint choc, which are also lovely, so I'm quite happy now. I prefer LL shakes, but I just can't stand the powdery texture of CWP shakes and soups, there also seems to be a chemical taste to me. The chocolate tetra I would happily drink even if not on this diet, as I would the bars. I don't usually like chocolate milk or anything like that either!
Sure you will be fine, and the best thing is that the tetras and bars mean you can do this anytime, anywhere, which is a definite bonus!