Quality and viscosity are high
I tried Strawberry Banana and Jet Blackberry flavors of GU Energy Gel, and could find both tastes are quite nice. I could have these gels with no problems even when I was exhausted while running a tough long race. The unique point of this gel is its high viscosity. I recommend not to store the GU energy gels in a soft frask, which is a useful tool to take energy gels in general.