I always leave feedback after I receive the item. So far haven't given a negative. Only once did I just not leave feedback at all, in the case of pre ordering the Batman Rebirth Dell Otto. It didnt ship for almost two weeks after release date. They did respond though, explaining the overwhelming amount of orders. Since they said that I didnt leave a neg, but felt they didnt deserve a pos either. Come on...its one book, put in the cardboard and ship it. That takes two weeks? You didn't expect to be busy?
Man that was like six months ago and im still complaining. But that transaction annoyed me.