Best two reviews:
1) TheWrap - While it sometimes feels as if it’s just not enough fun, once you get to the twin switcheroos and then the insane ending, you have little choice but to buy into horror-audience protocol and embrace it for the bloody hoot it is. (Rating: 80) Read Full Review >
2) Austin Chronicle - Despite the buildup of these horror expectations, there is no predicting how deliciously enjoyable it is to witness the macabre dance performed by Moretz and Huppert, two of the best actresses working in today’s movies. They play their game of cat and mouse with claws out; by the end of the berserko film, their characters are practically swinging from the rafters. Everyone appears to be having a grand time in Greta, and it would be crass for us as viewers to not respond similarly. (Rating: 78) Read Full Review >

Worst two reviews:
34) Washington Post - Greta might pretend to turn the tables by presenting the sexualized predation of a young woman at the hands of a female malefactor instead of a male one. But the fetishistic leer is just as troubling and offensive. Disturbance eventually gives way to derangement in a story that grows exponentially more irritating the more preposterous it gets. As Morton might say: When it rains, it pours. (Rating: 25) Read Full Review >
35) Wall Street Journal - Greta is petit Guignol trying to pass for Grand, a horror flick made by people who forgot to have fun. One of them, the director, Neil Jordan, made a memorable film called “The Crying Game” almost three decades ago. This is the groaning game, an inept tale of danger, entrapment and dismemberment. (Rating: 10) Read Full Review >