Well not reviews per se, but most of what I've written about them is in this thread-
www.rc-monster.com/forum/showthread.php?t=18895
And yes even my packs
became stronger for the first 15 runs, and the first run was far and above what my old FP Evo25 4900s could muster, and the Hyperions are so understressed they barely get warm, which is why I feel confident giving them a +10C rating over their own numbers. They just DUMP like a capacitor!
If you are seeing higher temps than you ever have, that's more evidence that your components are REALLY being fed now!