Can't Anyone Agree on I Am Legend?

Heard three different reviews of the movie I Am Legend today. One person loved it, one found it too scary, and a third didn't like it at all -- especially the ending. Though he didn't tell me how it ended (I asked to not to so it would surprise me) it does somewhat make me worried that they stuck with the crappy book ending instead of coming up with something cool. (Yes, Ryan, the ending of the book blows. But more about that after I see the movie.) And if I Am Legend turns out to be a major disappointment, at least there's one good movie to look forward to next summer: The Dark Knight. The trailer for it makes it look like they're keeping the Batman series back on track!