Not only can you depend on a wide array of delicious pizza, but often times the specials are even better. I've never been disappointed with anything I've had. The wait time is liable to be a little on the long side, especially if you have a larger party, due to the small size of the restaurant, but it's worth the wait.
I wouldn't have expected a pizza place to have the draught beer selection they do, but I'm always pleasantly surprised by their unique offerings. More often than not, they have a special cask ale release from nearby breweries like Flying Dog and Lost Rhino, as well as other lesser known offerings from all reaches of the world.
I could eat at Fireworks every day, and be the happiest 350 lb guy in Leesburg.