Flavour is good - was worried it would be fake but the only drawback is its really sweet (and I have a sweet tooth!), I have to water it down below the recommended levels to get to an inoffensive level.
I also find it hard to mix the powder in - you need to use a protein shaker and even then I tend to end up with a suspension and powder floating to the bottom once I pour it out into a bottle and have to go through really vigorous shaking to mix it.