I've been using Infinit for quite a while. It's still the best for me. I don't like strong flavors on long rides and runs. Infinit is the only one that lets me dial down the flavor but keep the calories and electrolytes.

They didn't have the phone consultation option when I first started to use it. So I used the custom blend sliders and tweaked it over time. I discovered that I can't run on a formula with protein, but biking is OK. I ordered the smaller package until I found a blend that worked, then I ordered the larger ones.

The powder doesn't seem so expensive to me. It's not much more than Perpetuem. It's the shipping cost that gets me.