Like fast food...
You enjoy it as you're watching it, but then realize it was less satisfying than you thought it would be.
It has a few moments but mostly it under performs.
i. The 'monsters' and gore weren't that imaginative. Evil Nazi villain looked no more terrifying than Two-Face. Bald one-armed zombie guy was less scary than the sprinting one-armed zombie guy in Snyder's Day of the Dead.
ii. The acting is all over the map. I guess part of the problem was the cliche characters... the actors didn't really have a lot to work with. Funnily, I thought the best actor was the young kid... the scene where he is caught in the crossfire had me thinking he was genuinely terrified.
iii. Not sure to what extent CGI was used to re-create the village. The early scenes that take place at night at they are approaching the village looked weird on my HDTV.... like it was a giant set. Took me out of the movie.
iv. Over on IMDB someone mentioned Inglourious Bastards when talking about this movie. Tarantino's film was also a total WWII fantasy but benefited from intriguing characters and great dialogue during some tension-filled scenes. I think THIS movie needed more of the spirit of THAT movie.