The solubility in milk with a hand shaker is very good! Ideally, you glide the Shake approx 15mins ... who still has lumps, has either too much or too little milk powder used / water.
The vanilla flavor is really succeeded. Tastes in no way artificial, is not too sweet, but very natural vanilla! As with any protein you get few minutes after eating a very light aftertaste (which is not disruptive).
I would recommend this product only!
