I found this PW to be better than the average. I cannot really say that much of what I have really tried has worked, but this definitely gives me a clarity of mind and purpose for the upcomimg workout.
There is also only 2 gr of Creatine, which is the dose that I like to take on a regular basis. I would prefer it without, but there are so few products available these days that are not stacked with Creatine. Worth a try.