I was there for Godzilla a few weeks ago and I am a fan. My mushroom pizza was very generous with the mushrooms and responsible about the crust -- crunchy and good flavor but not quite the level of really good homemade. Def better than most restaurant pizza. I didn't try any of the other food but it was well received by my guests. We are probably an extreme case but we were up to a couple hundred bucks for five people -- two of those were teenage boys who eat EVERYTHING, plus I had a couple of ten-dollar margaritas, so if you order carefully you can do much better. That popcorn sounds like a heck of a deal and the quality of the pizza makes me believe that the popcorn will be excellent.
Regarding the ten-dollar margaritas,get one *at the bar* and don't order one from your seat. My second one got watered down bad by melting ice but my first one was really darn good. The beer selection is very good although I think a "drafthouse" ought to have at least one cask ale on tap, but who actually does that.
One structural problem I have is that beer and popcorn don't really make sense to me, and beer just feels a little wrong in a movie theater. I think I'll be able to overcome that, though.