Friend used it, or rather her OH picked some up for her ( he had no idea lol, just got one of the cheapest! ) I think the sugar content drove her gelding up the wall, why you would want to feed something thats over 18% sugar I have no idea!
personally wouldnt touch it, i used it the first summer i had taz, i had the bag for 2 weeks it went mouldy because of the heat, and now one of my friends uses it because its cheap and goes far, but its just covered in sugar and molases, i dont see why any one would want to use it