Good at what it does, but not really my cup of tea.

Rating: 7/10 (15 March 2014)

For a movie named "1408", it is sort of hard not to spoil it. The name itself is a spoiler. Nonetheless, I will try to avoid them, even though I am marking this review as "contains spoilers".
Firstly, I rate this two notches above average for the genre of suspense/thriller. The visual effect, acting, and pacing are well done. Technically, I cannot complain that anything broke my "suspension of disbelief".
On the other hand, the visual effects and so forth go too far, in my opinion, to illustrate the strange things which the main character experiences. Perhaps fans of Inception will like it, because although it is not that outlandish, the surreal nature reminds me of such. The difference is, in Inception, you expect "dream world". In this, you really can't tell when you should expect real vs. dreams.
That is intentional and helps to keep you "on your toes", but somehow, I did not enjoy it as much as I would a simpler story with less effects, but more character development, information on the history or nature of the paranormal, or some form of involved process of change or redemption for some major character.
So, although I cannot complain, and some people might rate it 10/10, for me, it was missing something that I come to expect from stories. It is difficult for me to explain what, but, if you like a movie that will keep you on your toes and let you identify with a skeptic who is forced to believe in the paranormal (or, at least, some sort of evil influence, perhaps as benign as some form of drugs), you will find that in this movie.
So, again, good at what it does, but not really my cup of tea.
Sorry if this is too vague, what few major surprises they are (which were not already given by posters, synopsis, et cetera), I would rather not mention, because, really, this is the hardest movie ever not to spoil.