I run it every day... Its awesome. It smells good. You can run lots of boost. Its much more forgiving (Less likely to knock a piston out if you go lean).
It also sucks if you cant find a station and you car WILL start funny in the cold. It will always start but it will be a bit cranky about being woken up in the cold. Mine even started on a -35* day last winter. It took about 5 full secconds of cranking and then a little throttle to stop it from chugging but whithen 15 seconds it smoothed out and was happy as a clam.
Worried about not being able to find it in a pinch? I bought a mini afc and if I cant find e85 I just pop the mini afc inline with my maf. Scale it back 25%. And then Swap 2 or 4 pulley sizes up. Takes about 5 mins when you have the 5mm hex wrench, 15mm wrench, and pulley in the trunk. I only had to do it once when I drove all the way down to empty to this station that supposedly had e85 but found out they did not.
