I finally had the opportunity to try the non-stimulant sample. I don't like sampling/testing a product without knowing the ingredient panel. However, I went against my view and gave it a go before my training session this morning.
Taste: By now, I've learned that the sample was watermelon flavored. I enjoyed the light flavoring; it wasn't overpowering or overly sweet. It reminded me of a watermelon flavored water product. I especially liked that it isn't artificially dyed.
Mixability: I've read varying opinions in regards to mixability: some reported decent solubility and other reported experienced insolubility. There seems to be one ingredient that doesn't possess the best solubility. Most people are guessing GMS/glycerol. It seems like a logical guess, but I'll reserve my opinion to later date.
Performance: I'm a competitive Olympic lifter, so I don't chase a non-functional pump for appearance. If the pump is inhibiting, it really distracts from my performance.
Before I give my experience with the sample, I would like to add a caveat. While working up to my working sets at 105kg in the snatch, I dislocated my shoulder on 100kgs and cut my workout short. Therefore, I can't give an accurate description of my experience.
I hope that I will be able to give the product another go when it is released.