Thought I'd just do a quick link to the dubbed Attack on Titan trailer. For some reason only a handful of the trailers are available to watch in the uk.
You can watch on Youtube here.
I really enjoyed the manga and I'm too slow of a reader to read the subtitled version so maybe I'm bias but I really enjoyed this. There not far off by saying its the eastern version of the walking dead. Even a couple chapters in you get the feeling something just isn't right with these monsters that seem to eat humans for no reason at all.
I actually dreaded hearing Attack on Titan in English more than I fear actual titans. Now I just fear titans.