Taste is ok, very gritty though
I've tried mixing this a few different ways, hot water with about 3/4 cup milk added seemed to be the best, but then the drink wasn't warm for long. Despite mixing it thoroughly and continuously as I drink it, it does not seem to dissolve completely. It tends to be gritty and the taste is not bad, but not great either. The last bits of the drink are loaded with gritty powder and are pretty hard to get down.
It wasn't terrible and I still drank it to get the nutritional benefits, but I doubt I will buy it again.