/film gives it an 8 out of 10 and closes its review with this:
Cloverfield is a fun movie. Plain and simple. It’s sit back, relax and go. It’s a roller coaster ride. JJ Abrams wanted to make an American monster movie, and he has done just that. Cloverfield is not a Godzilla rip-off, it’s the reinvention of the monster film. This is the story about characters trapped in a monster film. They aren’t the characters that would be in the big Hollywood blockbuster version, or even an D-level take by The Asylum or Troma. These characters are the people running away from Godzilla. They have no urge to defeat the monster, they just want to get away and reconnect with their loved ones. This is a human story which just happens to take place during this gigantic moment of fear.
Roger Ebert says,
Mercifully, at 84 minutes the movie is even shorter than its originally alleged 90-minute running time; how much visual shakiness can we take? And yet, all in all, it is an effective film, deploying its special effects well and never breaking the illusion that it is all happening as we see it.
You can see a South Park spoof of this movie here. (HT: /film)