Ranked in these QuestionsQuestion Ranking
Pro Committed to Linux
System76 makes their computers specifically for Ubuntu and Linux.
Pro Quad-core i7-4770HQ
Twice the CPU power of other i7 ultrabooks
Pro 1080p matte IPS display
Don't worry about glare and get more usable screen real estate than other laptops with the Galago's 14" 1920x1080 IPS display.
Pro Iris Pro Graphics
Four times the graphics power of other i7 ultrabooks.
Pro Lots of connectivity
WiFi, Bluetooth, 3x USB 3 ports, HDMI, Mini DisplayPort, Ethernet, headphone jack, mic jack. It has everything you need to work on the go or hook up to a bigger display.
Pro Ubuntu comes pre-installed with auto updates
All of the hardware has been selected and tested for compatibility with Ubuntu, without headaches. That usually means it works flawlessly on other distros too.
Con Touchpad is not as accurate as on windows
Sadly like most newer laptops with Linux the touchpad sensitivity is too much, causing jumping mouse issues as well as inaccurate mouse actions. This of curse is caused by the lack of mouse drivers from the mousepad manufacturers leaving Linux devs to backwards engineer the drivers into the kernel. With time the mouse should get better, but is no help currently.