As long as the fuel has sufficient octane to cover the engines requirements it should be sweet.
There have been reported issues with carbie cars & ethanol based fuels, also the alcahol tends to absorb moisture so if the car is sitting around you might get water in the fuel over time.
The other issues have been with the alcahol destroying fuel lines, so keep an eye on your fuel lines, if you do replace then use good quality EFI line it will last longer. Also if your fuel lines start to decay replace your fuel filter there might be crap in it too.
Personally I wouldnt have a problem running ethanol based fuel in a car of mine, mind you my cars are EFI. I havent run ethanol based fuels in my cars recently as one sits around too much, and the other I dont drive past any servos selling the fuel.
cheers
Scott