Straw Poll: United 93

I'm seeing United 93 today. I'll refrain from posting a review until the appropriate time so I probably won't weigh in beyond this post, but I've got to admit that I'm going into this with a certain amount of dread. I'm fairly confident that Paul Greengrass can turn out a decent film based on past work but I'm not sure I'm even ready for a 9/11 film, even a non-exploitative one. I was in a New York theater that played the trailer to this and it felt like the air had been sucked out of the room. Is it too soon for this?