Oh, I liked (& still like) the flavor just fine... but about 25 miles or so down the road, I found that HEED didn't agree with me as well as I thought it would ;-)

Since then, I've been a lot more careful about selecting my drinks...

It's a matter of having the enzymes available to digest the stuff. For example, as we mammals grow older, we start making less and less of the enzymes to digest milk, unless you have been drinking milk as a regular part of your diet all along.

I sat through a workshop that one of the local bike shops put on last fall on sports drinks and nutrition, and it seems that Hammer uses a lot of the more complex carbs in its products. So, if you're a regular user of their products, it works just fine. Otherwise it will take a little adjusting to get your system used to it. Like any other food or health product, try it out (gently) before you try to ride hard/long with it.