Glad you brought this up, as I may be in the market for a new laptop in the near future.
This adds one more "must" have feature - REMOVABLE battery. I often care a spare battery just on the off change the battery dies, ie watching a move on a plane.
Understand Reason behind it - they took a page from tablet's, But think it's a lousy concept.
1) Makes it MORE expensive to swap out the battery when it DIES - But manuf like the profit.
2) If battery runs out of "juice" and no AC available then dead in the water. Which could have been avoided with a spare battery!!!!