I have used Hammer Gel for a long time. It's super simple to use with a Gel Flask and provides instant energy. And, no fussing with a foil packet, getting my fingers sticky, or worrying about disposal. Has saved me from bonking more times than I can count. Highly recommended.
I prefer to fuel on whole foods when riding, homemade rice bars etc. When I ride, this gel is in a 5 shot flask in my jersey pocket. Gel packets are sticky trash in my jersey or accidently dropped on the road. I mix flavors fo Hammer Gel in a flask or on their own. Easy to use, dose how you need it. Great for that emergency to avoid the bonk. Not a big fan as using this as only fuel, more of needing a quick blast to get over the next climb or long stretch of fast tempo. I always have a flask in my swim bag or in my jersey, period. I've been a Hammer Gel fan for over 15 years.
I love Hammer Gel. It has save me (and my wife) from bonking on many rides. I also like the flask system - I find it so much easier to use versus the individual foil packets. And, you don't have to worry about packing the used up sticky packets (or littering with them). Love this product!!
I've used bars, other gels, and regular foods. None compares to the nutrition I get from Hammer Gel. I take a single squeeze once an hour and I can ride all day long. In fact it kept me fueled on a 9-hour, 170 mile ride from Boston to Millbrook, NY!