I'm no scientist, but my body like Skratch hydration when it didn't like Nuun. I usually rock Gatorade since throwing my Nuun out, but Skratch is my new go to. No sticky mess from Gatorade. More sustainable performance from Skratch.
Definitely a must have. Even if you bike-stand-less and don't know anything about bike tools - you'll look and feel like a pro mechanic when wielding this handy tool. In fact, you may just want to carry it in your pocket at work - you know, just to look cool.