ATHF is the very definition of an acquired taste; you either love it or hate it. That being said, even diehard fans may be a little disappointed by this movie. The main reason for this is that the franchise's brand of humor doesn't really lend itself to longform stories; it works fine in the 12 minute chunks that compose the TV series but really starts to drag when drawn out to an hour and a half. That being said, there are a few treats for longtime fans to be found here as well as some other surprises. My personal favorite is a brief cameo appearance by Bruce Campbell as the voice of the forgotten fourth Aqua Teen that's just priceless.
I don't own the DVD, but it seems to be a fairly well put together package. It's a 2 disc set that boasts a lot of extras, the big draw being a completely different cut of the film that was scrapped in favor of the one that ended up in theaters. It's definitely something that's intriguing to longtime fans, myself included.
The guerrilla marketing campaign for the film landed the makers in hot water in Boston when one of the neon signs used to promote the movie was mistaken for a bomb.