The first time I heard of this junk I was curious and gave it a whirl. I climbed and skied Shastina and Shasta with nothing but 10 GU, water and a cliff bar in 7hours round trip and felt great. I've been using ever since.

This stuff is key for serious energy output endeavors. Mixed with a little real food and water I can go all day long if I pop a packet every hour or so. All the flavors are great except for Strawberry/banana. Taste buds will vary.

I love the affects this stuff has on my body come the need for a third wind. I quite fancy the Lemon Sublime and Tri Berry far more than the other flavors. I most dislike the Chocolate Outrage and find it to be a bit chalky and too thick. I am indifferent to the tastes of the other three. They recommend one every 45 minutes however if you have a well trained body and are eating other foods as well you should be able to use this product much less frequently.

When I'm feeling weak during snowboarding or a day long hike I'll just down one of these with a few gulps of water and it gets me through the day. My favorite flavors are chocolate and espresso. The consistency is like frosting. The power bar ones are gel like and I don't like that as much. Very good chocolate flavor.

I had these while marathoning and they gave the extra punch i needed. goes down easy with some water. They work best and taste best during hardcore workouts.

The little packet fits perfectly in the key pocket of my running shorts and it goes down real easy with a gulp of water. Not as salty as other gels. Gu is getting me through my marathon training.

Bought these for my kayaker to hang on to for me while doing my 10 mile ocean swim. Worked perfectly, I went with the vanilla, the consistency took a little to get used to and they are really sweet tasting, but other than that they were good, gave me the energy I needed.

I down one of these with a 16 OZ glass of water before I head up to summit anything. this gives you an incredible amount of energy with out the muscle cramping and overtired feeling you get at high altitude. These do not taste bad at all, my favorite being the berry. If you need that extra gas to get up the hill, GU is for you!

Taste is iffy, but its worth gritting your teeth for. THis stuff is great

I've been using these on biking, skiing and dirtbiking and they Espresso Love is great. I ussually have one an hour.

These little packs tend to bang around in one of my backpacks or camelbacks and the packaging doesn't get holes like others. The tri-berry is the best tasting of all the brands and GU stuff doesn't seem to take as much water to wash down.

I have very little caffeine in my diet, so when I suck one these down - it does the job!

The residue can be a bit sticky - that's the only problem I've had with these. Have used them in adventure trail runs and MTB races.

I've tried most of the energy gel brands, and GU is by far my favorite. It has a good consistency, and isn't overly sweet like some other brands. It is much easier to eat a GU every hour while on a trail run, hike, or climb then it is to try to stomach a bar. My favorite flavors are Vanilla Bean, Just Plain, and Lemon Sublime. Some of the others are palatable too. The chocolate flavor is a bit much unless you really like chocolate.

These are the best "no bonk" gels around. I think they tast better than the Cliff Shots too - not so thick.

I had Gus years ago and didn't like the taste of them. I gave them another shot about 6 months ago and have been hooked - the triberry is excellent, and the lemon sublime tastes like lemon filling from a pastry from Dunkin Donuts. Mmmmmmmm - I look forward to eating Gus during a race now!