I thought it really worked well, my only issue with it is that I had a hard time drinking it when its hot outside. it left my mouth really “yucky” and it didnt feel like it was quenching my thirst. I realize that sounds negative but I do think it worked really well and in colder weather I use it. I felt great throughout a really long ride with lots of climbing that I usually feel beat to death on. I just cant seem to handle the after taste when its really hot.