Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: What have I been missing!

I recently bought a Clif Bar to try - Chocolate Brownie, not included in this variety pack, but ate half before running on the treadmill and I ran for a long time! Wooo! And it tastes so good. No need to eat the whole thing at once as it is 240 cal. I haven't yet trying in lieu of breakfast but sounds like a neat idea :D