Nutritionally, the draw about PB2 is that all of the oil is extracted from the natural peanut butter, therefore being lower in calories. There is only 45 calories per 2 tablespoons, half the calories that would be found in only 1 tablespoon of regular peanut butter. It does have added ingredients that is not found in natural peanut butter, such as sugar.
I've used this product in a variety of ways. I stirred it into plain yogurt, and I think this is my favorite way to eat it. It's especially good with a bit of cocoa added.
As suggested on the container, you can mix one tablespoon of water with two tablespoons of powdered peanut butter to create a spread, which isn't too bad. I spread it on my pancakes.
Last week I made a peanut butter frosting that was to go on a chocolate cake. Instead of using a cup of peanut butter that the recipe called for, I only used half a cup and then added the powdered peanut butter to taste. I found that it worked quite well, adding lots of flavor without the extra fat. There are quite a few recipes on their website as well. They also have a powdered chocolate peanut butter.
Maybe we'll try to see if they can come to the Lansing Gluten Free Fair, and then you can try it for yourself. :)