In my opinion the food from Generations is of very good quality. I order there a few times a month and have never been sorry for doing so.
Their pizza sauce is sweet and mellow with just the right amount of oregano for my tastes.
They use a thin crust that has a nice snap to it and a sort of provolone cheese blend that isn't too greasy. Certainly more expensive than Domino's but if you are in Wilmington and looking to treat yourself to a great pizza I highly recommend Generations.