An Apple laptop very good!

The battery is excellent. It will allow you to use your computer for a good dozen hours without blinking.

The screen is correct, the sound is good but lacks some "safe". Am used to better sound on iMac but it's still a good sound for a "UltraBook".

Finally, it is very fluid, the computer virtually never plant. Everything runs very well without much unwanted delays.

In short an excellent machine that I recommend.