The first movie is absolutely amazing! I wouldn't say it's particularly scary, but it has an amazing sotry line that keeps you gripped with the odd creepy moment. This would have got 5 stars.
The sequel was better than a lot of others I've seen however, it's not as good as the original. It links to the first which is good and used the same characters which made me happy, as a lot don't and I turn them off straight away. It wasn't scary at all at Samara was animated =/ this was a huge mistake, as although the original wasn't really realistic, it was kind of believable...this one was not at all.
It didn't keep me as gripped and I was so frustrated at the end as it didn't answer any more questions about the background, it just created more questions. I would give it a 3/4 star.
Overall, a great horror film due to the story line. But not scary.