Will it get 4 hours battery life (non gaming use, just browsing, do some Microsoft office)
I think it'll work even for longer than that (as long as you're just browsing, that is).
So you mean this thing pretty portable?
Anything's portable as long as you keep yourself in shape and don't slack off.
And besides, you're planning on taking this thing with you into school, on a daily basis...so why you even bothering?
Again, as I said before: if you want something "quiet, cold, light and with long battery life" - get Ultrabook.
MSi = rubbish.
Why's that? At least their "gaming" notebooks are somewhat better than that Dell's "Alienware" overpriced garbage or Asus' "ROG" kids stuff.