Hi there. No, I've not used this particular food but to be honest, I wouldn't anyway. It's a museli style food which means bunny can selectively pick out the bits he/she likes and leave the rest. Unless you're very strict and don't refill the bowl until everything has been eaten, bunny won't get a balanced diet. You're better off feeding a good quality, high fibre pellet such as Science Selective or Burgess Excel together with unlimited hay and some veg.