For the first 10 minutes of The Woman I thought that it will be yet another low-budget horror movie, of the too crowded "torturing genre" (there are dozens of movies of that type because they can fit in a very low budget, just some red paint and fake body parts :)). Then the plot suddenly grabs you, you have a clue about how it will end and you really really hope that it will end this way.
*spoilers*
This is a very strong movie, centralized around the concept of the strength of the human nature - not the weak and/or mind crippled "end product" of the 21st century, but the pure "core" of it. This is where the difference between this and the other movies starts. Usually, the victim of the killer-freak breaks instantly, getting into panic, horror and so on. Here, The Woman just can't be broken - she sees all of this just as another battle for survival, the thing she does all her life. She doesn't have a feeling for good/evil, just for what is right and wrong.
All of the actors play especially strong, showing (as I see it) all possible types of reactions to the madness of their world (coming from the pretty messed up father, think of it as Dexter, but at the same time exactly the opposite of Dexter). The mother, who wants to protect his children, but is too afraid to stand up against her husband. The son, who got messed up just like his father. The big daughter which is in constant shock and horror, and the little daughter who is trying "to block" by not acknowledging the evil (she is too old not to be able to understand all of this, and she never cried or got afraid, even in the brutal scenes).
At the end of the movie, The Woman prevails in the situation too quick (I was expecting a longer battle), but, I think that is the right way to do it - she is just too good compared to the father and the son - they are just the typical mad people, they don't have what she has.
I find the contrast between her and the human-dog thing a very nice final touch to the movie. Without it, it would seem that the movie makes a comparison between the father, an educated human-beast and her, an uneducated beast. But she clearly shows that she has more humanity than the father, and more humanity than the dog-freak.
Also I liked how she took care of the father - at the beginning, with the ring, she gave him that special look of determination while she ate part of him, and at the end she looked him the same way, as saying "told you it will end that way".
The sound effects are superb, and the standard visual horror special effects are used carefully, so they are OK too. The movie could use some more suspense in the last 20 minutes of it, and a better first scene.
Definitely take a look at it :)