I have tried it and it is pretty good.
How I would rate it:
Mixability: 5/10 It clumps a lot more than any other Protein I have tried when just shaking. I have discovered that if you shake it and then let it sit for a few minutes, and shake better. It disolves better.
Taste: 8/10. It tastes good and is sweet. It is like an orange dreamsicle just like the name says. I could not use it contiuously, after one 5lb tub, I needed a break from it.
Other: For some reason it seems to give me bad gas. I never have gas from taking ON whey, but with this Dymatize within 30 minutes, I am already farting and they get really nasty smelling.