I used to prefer this gel over the more liquidy PowerBar gels, but not any longer.
All in all, this is a very good product, but I find it just a little tough to swallow, it's so gooey, it's almost like slugging down raw honey or something?
Pros It works to keep you moving and definitely helps you get up that next big hill or to keep up in your paceline after a long day in the saddle.
Cons A little on the gooey side.
This is my second favorite flavor and a consistent go-to for me. Try the salted caramel if you want an even sweeter (literally) gel.
Good mix of flavor without being too sweet.
I don't notice any real kick from the caffeine, but I do notice the energy kick.
I usually take two servings at the rest stop in the middle of the ride and two at the end . I like the taste especially the vanilla, chocolate and peanut butter flavors. I use the gels because I have angina and cannot digest bulky food without feeling distress on the rest of the ride.
I use GU to start refueling 30 miles into my ride. This workers well with my other fuel that I am eating so I don't end up bonking before I get half way through my ride. I only need to take a few of these for a century ride so I don't need to fill my pockets.
I've used both the GU and GU Roctane for 5 years primarily for marathons and long training runs and these have always been reliable. The flavors are based on personal preference and it takes time getting accustomed to the taste. Definitely practice fueling at least 3 to 4 times during long runs, as I would suggest taking a gel everything 5-6 miles to start and if you need more then you can increase consumption. I have only relied on GUs and salt pills during races which have been the only fuel required to get me to the finish line. The sodium citrate (versus sodium chloride) is less acidic and easier on the stomach, but consuming too many during a long race may lead to GI distress due to the heavy consumption of the maltodrexin in these. Train appropriately, figure out your ratios and you won't have any problems. Highly recommend this product.
I rode across the country last year and lived on those gels. I tried them all and GU is the best. Great tastes and good consistency. Not too solid and not too liquid. Eat one every ten miles and the engine keeps going.