According to a recent review on techradar.com the Lenovo ThinkPad X1 Carbon 2015 is still is nice but with a  price.

Basically, to go thin and powerful it has sacrificed too much yet kep the high price tag.

Battery life is the problem here and also the screen is still reflective even though its a non reflective screen.

It look likes the marketing department is forcing the engineering team to make choices they should not be making.

“lets make it thinner guys!” We need to advertise how thin and non reflective it is! the downside is, battery life sucks

Oh well,

it still is a nice machine though, it makes the Venom BlackBook 14 Zero that much more relevant, the trade off of course is its a bit thicker and heavier, but much faster and has a proper battery life and screen.