LeCellier is below main street level of WS. There are no windows or patio. You would not be able to see the fireworks from LeCellier. The inside of the restaurant looks like a celler.
Eating at Le Cellier is like eating in the basement. It has about as much charm. I'm obviously in the minority, but based on my experience there, I think it's over-rated and definitely NOT for the claustaphobic
We watched them near Canada before our reservation last time....needless to say, when we were done eating and left the parks, they were SO empty! But we did get to see the barge explode and hear the goodnight and get our own bus back to our resort lol