Lucku, I have also started with the Coopers Dextrose this week as well. I found it to be VERY sweet and it was a bit hard at first. As I have become accustomed though, I just scull it right down as I know it is good for me. After a while of drinking all these crazy potions you won't have a problem.
Previously I was using Maltodextrin, it tasted a heap better. But I was paying $28 for 2kg and I have also found (from reading) that Dextrose does a better job straight after workout.