Conditionally suitable for building muscle

Most lifters will confirm that mixed protein as that is pointless from Best Body Nutrition. After training is a rapidly digestible protein is most important, so-called whey protein. Mixed with rapidly digestible carbohydrates (glucose) the body can also make use of it.
Mixing protein is only useful for absolute beginners who do not want to change their diet. Proper nutrition is but besides training and the regeneration of the most important point in building muscle.
But back to the product:

Taste: super
Solubility: super
Effect: insufficient

Highly recommended is Whey Gold Stanard of Optimum Nutrition Optimum Nutrition 100% Whey Gold Standard Protein Double Rich Chocolate, 1er Pack (1 x 2273 g)
The price is equal to, and taste it can keep absolutely, especially the chocolate flavor.

Buy some prefer a Whey (z. B. the above) and mixed approximately 1g glucose per kg. Body weight to it. This sugar is immediately consumed by the muscles (afterburn) and shall not be from the fat depot. Mixed with water, the Shake easy drinking immediately (!) After training.

Otherwise, spread over the day protein-containing food to eat (turkey meat, nuts, cheese, milk, ham, ...) and you do not have to buy this powder. Is definitely healthier. For Whey There is no natural alternative.