PowerBar had Isomaxx Blutorange offered as sponsorship for an Ironman, where he has tasted to me very well, so I've bought a jar.
I was not disappointed. The taste, even after more than a year TIP (regardless of whether I him, thinner or thicker mix to instructions).
The effect is not quite as extreme as the Charger, as I felt animated by caffeine always right, that comes when Isomaxx rather than enlivened by over refreshments.
For home use, before tougher or longer sessions Isomaxx is good in any case. Compared to water I have with Isomaxx noticeably less muscle contraction in the days after a workout.
From me there full 5 stars - for me remains the Isodrink my confidence.