Su-Ann B.wrote a review of GU Chomps Energy Chews 16-Pack on January 6, 2012
The Chomps themselves work well from a sports nutrition perspective, but unfortunately the packaging doesn't make these easy to eat.
The sachet isn't as easy to use as the Clif ShotBloks (which let you squeeze out a Blok). Your fingers tend to get sticky trying to pick out a GU Chomp. Not great on the MTB (where full finger gloves and sticky Chomps don't mix), but you could live with them on the road if you're prepared for sticky fingers!