Taste great.... and filling!
A few of these either in pockets or pinned to your clothes is an ideal system for getting from point A to B without bonking in the middle. They're easy to open with one hand and a mouth and can be eaten all in one gulp or "slurped" on for a few minutes.
The flavors aren't going to blow you away. They won't replace a snickers or swedish fish in that category. But they're made with good stuff and definitely are tasty enough.
I pack them on hikes, alpine tours and any other activity where weight, convenience, energy, etc. are an issue.