I got a sample of Dr. Jekyll from a contest, I got The Punch Flavor
Taste 5/5
I thought the fruit punch had just the right taste not to strong and no after taste
Mixability 5/5
1 sample pack in about 10oz of cool water in a shaker cup, shook about 20sec and drank. I thought it mixed great not Grit, Chucks or floatie, nothing left in the bottom of the cup
Energy 4/5
The energy was good, this product does not have a lot of stimulants ( 100mg Caffeine) so it gives a lift but no kick in the pants (and I like that sometimes)
Endurance 5/5
Endurance was very good my workouts last about 1 hour and this supplement did not let me down.
Pump 4/5
This is the only place I feel Dr Jekyll let me down, seeing as it is advertised as an "Intense Pump" product I was hoping my muscles would be ripping though my skin, but I never got that. The pump was there and OK but not "Intense"
I did have a good work out and the product lasted for the entire workout with no crash at any time. I did have an overall "Good Feeling"
I would like to that ProSupps for the samples and sorry I could not in good conscience give Dr Jekyll 5/5. I did only use 1 scoop per work out. I will maybe give 2 scoops a try.
**Update 03/23/2015**
In the above review I had only had (2) single serving sample packs to try. I recently got a tub of the Dr Jekyll and was able to try it out at 1 1/2 scoops, at this serving size I would give this supplement a 5/5 rating. This is diffidently the sweet spot, great pump and energy! It you don't believe me, just give it a try!