For starters, i need to mention i have not read the book so i do not know how close the movie is. Also, in case you do not like period movies, i don't think there is a reason really to read the review.
I would describe Jane Eyre as a really slow, moody and weird movie. In general i like watching old movies and but i didn't not expect the movie to be so dark and sad. The fact that Jane never smiles and she is not happy in general, and Edward had a harsh character gives the whole movie a heavy atmosphere.
I found the 1st half of the movie far more interesting than the 2nd half. Maybe it was because the characters were still new to me, or because you still did not know Edward secrets and it has a creepiness in, with the strange noises and accidents. But after you get used to them and learn pretty much everything, the romance i can't say it really made want to go on with watching. It's was like half and half for me.
On the acting i can't say it was something wow but it was not bad. The main actors manage to pass you their feeling and ideas and that's a good thing. What really tired me, was how dark and sad was the whole place. The house, the sky...everything. And also i could not stand the hairstyle trend of this period. It's just yuck for me, and i was really thinking how much more beautiful Mia Wasikowska was in Alice in Wonderland.
To close the review, i don't think people who don't like that kind of films will manage to watch it. And as for the others, just don't expect something like Jane Austen.