9to5Mac reports: [edited]
No fan noise
A single cable solution
The MacBook can only do 4K resolution at 30Hz, but the ability to connect it to a USB-C-enabled display like LG’s 27UD88-W 4K monitor is a nice option. Not only will a single cable provide the bandwidth to drive an external display, but it will also charge the MacBook and allow it to interface with devices connected to the display’s ports.
Easy charging with external batteries
The MacBook can take advantage of external battery packs, and draw upon power via a USB-C connection.
Export 4K videos
With Final Cut Pro X, it’s easy to export videos, even Ultra High Definition 4K videos, without breaking much of a sweat.
Low profile, lightweight and portable
It’s so light and thin that I can hold the machine in one hand while typing with my other hand.
Superb build quality
The MacBook arguably has the best build quality of any of Apple’s laptops. The hinge, for instance, eschews the black plastic found on other MacBook models. The aluminum feels dense, strong and ready to stand up to everyday usage.
Surprisingly loud speakers
The speakers are loud and clear, and deliver sound quality that might cause you to do a double-take upon first listen.
Peppy Core m5 processor
There’s nothing that I threw at this machine that it wasn’t capable of handling, and not just barely, but it did so admirably.
Editing videos and photos on the MacBook is no problem when it comes to color accuracy and uniformity across the entire screen.
Long battery life
Apple says that the battery will last for 10 hours browsing the web.
[Editor's Note: the only thing that would stop this beautiful piece of technology being my next laptop is the size of the hard drive, currently the largest available option is 500GB]