Shingeki no Kyojin is pretty good. Definitely one of the best shonen series I've seen. But for me it doesn't quite manage to break into the level of really great anime series, which coupled with its extreme popularity can be a bit frustrating at times. Still has quite a good amount of likeable characters and I'll certainly check out the sequel when it comes out.

It kinda feels like Muv-Luv Alternative except not as good.