I have tried a few and agree that they are pretty disappointing. The only one I have tried and LOVED is MRM Low Carb Shake. It doesn't have that "strange" taste the others do.

It is $69.95 for a HUGE container.

Comes in Chocolate, French Vanilla, Strawberry Banana

Each serve contains only 3g of carbs and 20g of high-quality protein.

I am sure some health food stores stock it, but am unsure which. I buy it through http://www.sizematters.com.au You will find it under the "Low Carb" link.

In my opinion it is really yummy, and well worth the price. The StrawberryBananna is my favourite.