This one kind of surprised me because I was curious as to how they would work the basic theme of the original movie into this story. I think what impressed me the most about the film was the direction. I really liked a lot of the establishment shots of buildings, the skyline, and the city, along with some nice shots of birds in flight, etc. It REALLY added a lot of mood, I thought. Also, the basic structure and look of the film was done very well too. And, the acting was pretty decent all the way around.
I felt that they did a good job, too, in reworking the story with the basic element from the first film that we are already familiar with. So, this story seems like a natural continuation or progression of the story line. I also liked the older guy who appeared to be the main guy's mentor.
Some may feel that the ending was not quite as perfect as it could have been. But I think, considering how bloody DIFFICULT it usually is to come up with ANYTHING decent at all for sequels to low-budget Horror / Sci Fi films, that this one came out a hell of a lot better than most do. You end up with a pretty gripping and suspenseful story, and one that is believable enough to keep your interest until the end.
So, if you are a fan of Time-Travel oriented Sci Fi films, and you liked the first movie, and if you keep your expectations within reason considering that this is the SECOND sequel to a low-budget Horror film, then I think that you might find this one quite entertaining...
(Probably between a '6.5' and a '7', but since it nicely surpassed my somewhat low expectations, I nudged it up to a '7' :)