We did lunch here without an ADR, I imagine if we want to be there during Illuminations we'll need a ressie. How is the view from here? Does every table get a peek or are the view restricted?
I think the best views are from window side tables. Honestly I'd just go outside. The one time we requested a window on a couples only trip after waiting 1 hour they told us they wouldn't be able to and while we ate we saw 3 window tables just sit empty. So I wouldn't count on a window seat.
We've eaten there twice during Illuminations, and both times it was great! Once we were seated right at the window, and the other we were kind of in a corner, but one row back from the window. We could still see everything but maybe the very highest fireworks.