It seems to be mixed so far but that is not necessarily a bad thing, as the first film was mixed too, opinions on it may change over time and it might be better, or maybe worse.
I don't like what I have been reading though, I mean Predator has never been as gritty as Alien in tone and realism (at least the first Alien films) but this movie seems way over the top. You even got a kid with autism which is probaly going to automatically mean he can figure out the Predator tech and save the day. Not many people like special snowflakes, Mary-sues and its male equilavent.
I might be pleaseantly surprised by the movie though, I have not seen it but almost everything I heard and read about this movie is made me want to shake my head and sigh.