I think it was the feeling I had of a huge enviroment to explore.
Combined with the great story - even though very simple and straight forward.
It's not as if you could get lost wandering around or anything, but the game manage to make you think and feel it's larger, than it is.
You can definetely feel the makers are storytellers and that it's based on an already wellknown concept of this world and it's characters.
The graphic is amazing if you can play on max settings - and even middle is wonderful.
At times it's a bit dark though, but there's not that many hotspots hidden in it..
I'm not gonna comment on voiceacting or translation, since I'm not native english
To me it sounded ok though, lol.
Just a little warning - people with only ONBOARD graphic are not supported!