Sound is really awesome experience, when watching videos. so far not seen such sound quality in laptops. you can happily enjoy watching movies for hours without need of any speakers even if its little noisy around. like in train.
screen visibility from all angels is good, even under outlight.
Battery: its good as mentioned upto 6 hrs on full charge , normal browsing or video watch.
Boot time: its fast (within 10-15sec) and its expected bcz ...