I agree with the general consensus in that I have felt a slight (but noticeable) improvement in the end of my workouts when I drink Surge during. I usually wind up drinking about 2/3 of it during my workout though.
On a related note, I ran out of Surge this week so while I've been waiting for it to ship I bought some "Power Load" from GNC. To me, it definitly seems to be a slight notch below.
Again, not a huge difference (although the Cherry flavor I have tastes like ass, I don't think Surge is great, but I definitly like the taste better than Power Load). Also, I believe it has a little less protein and I feel like the recovery affect is just a bit weaker than Surge. Anybody else try this product?