Great for endurance ridding. I take 30%-50% more than recommended when mixed with water for my double and triple century rides.
I use this with hammer perpetuem for long rides, and by itself for shorter rides. I'm generally not good at eating at regular intervals and this helps me to keep from bonking.
It tastes okay. Not bad, but not great. After a while I do want some plain water.
Preparing for a 200 mile race, I bought Heed to get used to it since that's all they served on the race. I found it to be bland compared to other mixes I was using. I ended up drinking less of it on my rides due to the taste...I'm sticking with my other mixes.
I use this ride on all of my road rides, which vary in distance from 20-100 miles. I do not notice any typical fatigue issues when I use it. I really like that it is colorless when mixed which makes keeping bottles clean less of a chore following a long ride. I would recommend it.
I've been riding long miles in serious heat and even used this for the Pike's Peak race with Hammer Gel as my sole source of hydration and nutrition. It works better than anything else I've used. It also tastes great!
I've tried them all, and HEED is by far the best energy drink of all. It has a variety of flavors to choose from, is easy on the stomach and just plain works. Their use of all natural ingredients and no food coloring make it a top choice of many athletes. Sure, it's a bit more expensive than others - but it works for me and I don't mind paying the extra price. The amount of information and research on the Hammer Nutrition website is amazing. Since HEED has complex carbs and electrolytes it can be used in place of energy gels on shorter rides.
I've been a huge fan of Hammer products, Hammer gel, Recovrerite, and the Enduralytes Fizz. Maybe it was just this melon flavor, but I found myself not wanting to drink the HEED. Instead, I wanted to gag.
In my opinion, Hammer really messed up here.
I will continue to use the Hammer gel in Raspberry and espresso, but I will stay away from HEED.
I tried several brands (EFS, Ironman, Cytomax) but I'll be sticking with Heed. I do mostly longer rides so consequently I end up going through at least 58 oz. of this stuff when temperature is moderate. Other drinks taste overpowering and syrupy but Heed is light and unobtrusive so I can drink more of it. I also only use 1 to 1.5 scoops per 24 oz of water. It seems to hydrate me well on long rides. I have not tried all the flavors but I like the strawberry so far.