If it were me, I'd rather inspect the replacement bike at the shop instead of having them deliver it to me. I would try to be there on a Friday, and stay the weekend while putting miles on it. If they deliver it to you, once it is there, and if there are any problems, you would be in a difficult position because it is doubtful that the person doing the delivery has any authority. You should always try to have some sort of leverage in a negotiation.
big +!
