Vi Shape Visalus Nutritional Shake Mix: does it really work

I am getting low on protein and my friend gave me a sample of the Vi Shape shakes. It tastes good but before I change from my lean protein to this I want to make an informed choice. I would love to hear both success and failures with this product. As well as anyone who has switched from a lean protein to this product. Is this just as a meal replacement or can it be used as a snack/ post workout snack? I eat 6 times a day: 3 meals and 3 snacks and normally workout 60 mins 4 to 6 times a week. I am on a tight budget so I don't want to be told that after I purchase this that I will need to purchase something else to optimize my results. Any advice would be great!