Why curse and a blessing? The training is absolutely outrageous, for about 3-4 hours you will experience the greatest feeling, as if you were on drugs. You just want to still train and let out the power. The downside is: Just as long (3-4 hours) you're after "down", totally tired and exhausted.
For me, the focus makes the training but 90%. The other 10% are as I feel like it, the taste or the solubility. Say all that I do not care. It is important that the training is an absolute exception experience with this booster. Therefore 5/5 stars. The taste is average to good, the solubility also.
The recommended dosage of max. 10 grams should not be exceeded (one sees nowadays very rare in boosters that the specified dose actually enough) and you should only Narc 3-4x use a month in order to always achieve a 100% activity.
Absolute buy recommendation.