I have personally installed 5 or 6 of them, and sold many more without any complaints. They are almost silent if installed correctly, more so than the old 255's, and are specifically designed for e85 use. It's a no brainer imo, as I am sure many people have told you already.
Yes the fuel gets hot after a few hours on the dyno, but how is that the fault of the pump? It's the rail that is hot, why don't you look at super cooling the rail with liquid nitrogen or something.