The powder dissolves more slowly than, for example, the pure Whey Protein from Optimum Nutrtion .... it can also form small clumps. My tip ... let about half a minute to minute are durchschnütteln after the first time and shakes it then again - this will be better resolved.
The taste it reminds me of Kitkat or a chocolate with a Keksinhalt ... It tastes very sweet also through its sweeteners and should also convince big sweet tooth taste.