I do like it. It gives the shake a nice nutty flavour. However, I only have a shake once or twice a month and I don't use the PB2 each time....so it just sits in the cupboard. I haven't found any other use for it. So even though I do like the flavour, I wouldn't buy it again...especially since I had to buy it online and can't easily pick it up in a store.
If you are persistent, you will reach your goal. If you are consistent, you will keep it.