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 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.
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.
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.