we were there the last week of Spring Break - got to park opening, rode Forbidden Journey, Flight of the Hippagriff, then went to 3 Broomsticks for breakfast - YUM!!! BEST breakfast - and we didnt have reservations, we got through the line fast, the helpers walk with you to a table - its great!
Our first night there we just went in for Butterbeer and a dessert (an apple crumble I think - it was warm and messy, and delicious!)