I love this Samsung laptop. I never ever booted the preinstalled Windows on it, but went for Ubuntu right away. Never before had a laptop that would boot up to the login screen in less than 10 seconds (takes about 8 sec from power on, and I don't mean a resume, but a real power on). I don't do much graphics, but for what I do it's super fast.
The things I like most about it:
- the display is so bright (and matte), it is easily useable in bright daylight and even sunlight (ok, resolution could be better...)
- the keyboard is awesome for a device that size. I really type a lot, and the keyboard is superb.
- it's fast, and it's silent. the fan is rarely noticeable at all (and I have seen other laptops running Linux that sound like a vacuum cleaner on an idle system - and even worse for Windows)
What's a bit annoying is that you need those dongles if you want to connect VGA or RJ45. But I bought a port replicator connected through USB, which connects all my devices. It even supports VGA over USB, which I haven't tried yet (hope I get it working for Linux as well).