Considering how small Madison is, I didn't have super high expectations for any restaurant here, but 605 Grille was a fairly tasty meal overall. The dining area is open, inviting, and earthy, with a mix of casual (paper topping the tables) and classy (cloth napkins). I was happy about the menu and the several vegetarian options that were hard to choose from. I ended up going with the chickpea burger, which was good but not mind-blowing - it was an interesting curry-style take on a bean burger with a tasty yogurt sauce and a homemade bun. I was pretty disappointed with my french fries, though - I was surprised they would serve them so overcooked to the point of being almost burnt. So much potential. The caramel apple bread pudding was another dish with a lot of potential that was good, but not great. The service was slow, as well (for the US - I have gotten used to European service and wasn't in a hurry so I didn't mind that too much).
605 Grille, keep on trying. I think with some better cooks and servers and some recipe tinkering, you could be really amazing.