i just got my free sample of animal's pump, recieved it 2 days ago through their web promotion. Took them today before my chest workout, some of my gripes are that the pills are huge and theres a bunch of them. I'm not usually a little mija when it comes to swallowing pills but those things are huge. It did what was promised more energy and increased pump, it's now about 1hr after my workout and i'm still pretty pumped. As for my workout i blasted through it, usually about a 50 min workout finished it in about 35, didn't move much more in terms of poundage but deffinately noticed more of a pump overall pretty satisfied but i don't think it's worth how much it costs in stores, just my 2 cents