I love this stuff, no matter how many miles I have run, or how my stomach is feeling during a run or race, the Crank products go down easy. I guess it’s because they taste so good. In October I will be running my first 100 mile ultra race, the San Diego 100. I’m not sure what products will be at the aid stations, but e-Gel and e-Fuel is what I will be using. This stuff is GREAT!