Ok, so I didn't like the first movie too much, the concept was amazing but the movie was not. This one looks absolutely sick. In my personal opinion, it looks like what the first movie was supposed to be, violent and outside.
Compared to the first movie, it already looks better. Instead of focusing on a plot (which sucked) they're focusing more on the actual purge and what happens outside.
If you haven't seen the first movie, I'd recommend just waiting for this one, it was set inside a house with the cheesiest ending and it was too predictable from the start of the movie.
[video=youtube]
https://www.youtube.com/watch?v=059H3H2SuZk[/video]