“Firstly I have found it to have a plastic taste in the water that I can't seem to get rid of. I tried using a Crystal light type flavor enhancer, I have now found I cannot remove the flavor at all from the jug. I've washed many times but nope, I find it quite frustrating. But I guess it's better than the plastic! It's far too heavy as well for me to carry or use easily while exercising, I suppose I should have realized this but I did not see a weight for it while full. There's no insulation at all to it, and the insulating prototype I bought with it is not help. I'm glad I tried them, but this product unfortunately is certainly not for me.”